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Wildlife in the garden

Wildlife in the garden
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    1. Home/
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    5. Wildlife in the garden

    Wildlife in the garden

    Most Idaho gardens are alive with songbirds and beneficial insects, and many are visited by deer, rabbits, raccoons, skunks, voles and even the occasional snake. Which critters you welcome, which ones you tolerate and which ones you simply refuse to share space with is a very personal matter. On this page, you'll find information to help you decide just how "wild" you'd like your garden to be and how to make it more or less-so.

    Wildlife in the garden

    Birds

    For many homeowners, no yard is complete without songbirds. The National Wildlife Federation requires five elements to certify your yard as a “Wildlife Habitat”: food, water, cover, places to raise young and sustainable gardening practices.

    The National Audubon Society makes these recommendations for increasing the number and diversity of birds that you attract to your backyard:

    • “Increase the kinds of foods that you offer and the times of year that you offer them. Although many backyard birds are insect eaters, you can supplement their diets with nuts, seeds, fruit or nectar, depending on the species of birds you'd like to attract.
    • Provide a clean, fresh source of water for drinking and bathing. Adding a drip or misting feature will increase the number of visitors, as will using water heaters in winter to keep the water ice free.
    • Make sure birds have places to hide from predators. Native trees and shrubs of different densities and heights give them good places to retreat. Evergreens offer critical cover in the winter.
    • Learn about the nesting requirements of the birds that may stay in your yard during the breeding season. Provide the native trees and shrubs they prefer or supplement with nest boxes.”

    For more information

    • National Audubon Society

    Grow natives

    According to the National Audubon Society and the National Wildlife Federation, native plants provide the best overall food sources for native wildlife and may support 10 to 50 times as many species as non-native plants. Not only are native birds adapted to native food sources, but native plants offer native wildlife both familiar nesting sites and useful cover. Another advantage is native plants generally demand less fertilizer, water and pest control in the landscape, since they're adapted to regional soils and climate. Native plants are increasingly available for sale in Idaho's progressive nurseries. For information on specific species, see:

    • Landscaping with native plants, BUL 862
    • A guide to seedling selection, University of Idaho College of Natural Resources
    • Landscaping with native plants of the intermountain region

    West Nile Virus

    What is it?

    West Nile Virus is a potentially serious illness, with approximately one in 150 infected individuals developing WNV meningitis or encephalitis. Although the Centers for Disease Control estimates that four in five infected people will show no signs at all, severe symptoms can include high fever, headache, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, vision loss, numbness and paralysis. Among milder symptoms are fever, headache, body aches, nausea, vomiting and sometimes swollen lymph glands or a skin rash on the chest, stomach and back.

    How is it spread?

    Although humans can feasibly spread the disease among one another through blood transfusions organ transplants, breastfeeding and even between mother and fetus, WNV is typically transmitted from infected birds to humans via disease-carrying mosquitoes. Hundreds of species of birds can be infected with WNV.

    What steps can you take in your garden to minimize your risk?

    According to the National Audubon Society, the best way to reduce the presence of WNV in your neighborhood is to keep mosquitoes from breeding in your yard:

    • Discard old tires and aluminum cans and drill drainage holes in the bottoms of items in which water collects.
    • Prevent water from accumulating in flowerpots or barrels and on swimming pool and boat covers.
    • Change the water in birdbaths and pet dishes at least every 3-4 days (some experts recommend every 48 hours).
    • Clean roof gutters, clean and chlorinate swimming pools and turn over wheelbarrows and plastic wading pools when you're not using them.
    • Aerate ornamental pools or stock them with mosquito-eating fish.
    • Fill water-collecting tree cavities with soil or sand.
    • Alter your landscaping to eliminate standing water.

    For more information on WNV, visit:

    • The Centers for Disease Control
    Wildlife in the garden

    Mammals

    Deer

    What are deer doing in my yard?

    Idaho's mule deer and white-tailed deer are "edge" species, preferring to browse in open areas near forests or dense shrubs. Our urban landscapes, with their innumerable edges, are consequently very attractive to deer. On average, deer eat about 7 pounds of food—approximately 3 percent of their body weight—each day. They're most active in the early morning and evening. Deer like to nibble, tasting first one plant, then another and will return to your yard repeatedly if they've learned they'll find good things to eat there. While they like some plants—and some stages of plant life—better than others, they're far from fussy. Deer also drink 2 to 4 quarts of water a day, sometimes from birdbaths or water features. Females typically, they have one or two fawns each spring, although triplets are not unusual for white-tails.

    Benefits and conflicts

    Who doesn't enjoy watching these graceful animals, especially with their adorable fawns at their sides? However, deer can cause extensive damage to urban landscapes orchards and vegetable gardens by feeding and trampling on plants and by rubbing antlers against young trees and shrubs. Young garden and landscape plants can be severely damaged or killed by these visitors' spring and summer browsing; indeed, deer have a special yen for tender new shoots and buds. Deer will include fruit in their diet during the summer, acorns during the fall and lichen, dead leaves, twigs, bark and evergreen boughs in the winter.

    Strategies for coexistence and control

    • Habitat modification: Although deer become decreasingly selective as they become increasingly hungry, there are some plants they are less likely to eat. Among the plants that deer avoid are those with a strong scent and those with thick, leathery or fuzzy leaves or bristly or spiny textures. Many deer-resistant plants are poisonous throughout the year or at some stages of growth. See Deer-Resistant Plants from Colorado State University for more information or deer-resistant plants from Oregon State University.
    • Fencing: Typically, it takes an 8-foot-tall fence — plastic mesh, wood, chain link or wire — to keep deer from jumping into your yard. However, a 5-foot height solid fence may work because deer are reluctant to jump into an area they can't see. Keep them from crawling under the fence by securing it close to the ground. Electric fencing—one to five wires temptingly baited with a 1:1 mixture of foil-wrapped peanut butter and peanut or vegetable oil—can effectively exclude deer from small areas. Successfully lured into being shocked, they learn to stay out. Protect individual trees or shrubs by encircling the plants with staked wire or plastic mesh. Some commercially available trunk wraps are designed to protect bark from antler-rubbing.
    • Frightening devices and repellents: An active dog running loose in a fenced yard can effectively deter deer. Odor- or taste-based repellents can help if they're applied repeatedly, especially after rain or irrigation and if the same repellents aren't used for too long. Once deer accommodate to a particular repellent, it loses its ability to deter them. Flashing lights, for example, work briefly but deer soon learn to ignore them. If you're spraying a repellent on a food product, be sure to check the product label to verify that is an approved use.
    • Trapping: Constraints of labor and expense usually make live-trapping and removing deer unfeasible.

    Marmots

    What is a marmot doing in my yard?

    In Idaho, we use the name rockchuck for the yellow-bellied marmot (Marmota flaviventris). In some places they are also called "whistle pigs." Marmots are rodents and are the largest member of the squirrel family. They look like an overgrown ground squirrel with a yellow-tan belly. Males can weigh as much as 11 pounds. Marmots live among rocks where they can find and build burrows. Luckily, they do not indiscriminately dig burrows in open ground like their eastern "woodchuck" cousins. They are common in Idaho's warm valleys and are often seen in the foothills, even near cities and also around the edges of lava formations. It is a common sight in southern Idaho to see yellow-bellied marmots in springtime sunning themselves on rocks along roadsides. In the summertime, marmots mostly emerge from their dens and feed at night. For that reason, it is sometimes hard to identify the culprit when damage is discovered in the garden. Marmots tend to live in social colonies, are prolific breeders and can become serious garden pests if present in large numbers. Marmots will eat any tender, green plants but especially love succulent vegetables. They are voracious and a few marmots can strip a vegetable garden in a few nights. Marmot damage is unique in that they eat plants to the ground, giving them a "mowed" look. Other pests tend to be selective in what they eat.

    Benefits and conflicts

    Marmots provide little direct benefit to the homeowner. They can be interesting to observe during the times of the year they are outside their burrows. Conflict with marmots come directly as a result of their tendency to raid the garden and eat anything that looks like a plant, including the lawn.

    Strategies for coexistence and control

    In agricultural areas, when marmot damage becomes severe, action is taken to eliminate the problem through shooting, gassing or poisoning. For the homeowner, these options may not be appropriate for a number of reasons. Also, many gardeners are willing to share their produce, as long as the marmots do not take the lion's share. Following are ideas for dealing with marmots if they become a problem.

    • Remove them through trapping: Live traps baited with succulent leaves or sprigs of clover can be used to capture marmots, which then can be moved to a more suitable habitat. To keep the pests from returning, relocate them to a place at least five miles away.
    • Plant a "marmot garden": If the marmots are not too numerous, you can keep them from damaging precious plants by planting an attractive feeding spot close to the den. Given their preference, marmots will eat succulent clover over most other types of plants, so a plot of red or white pasture clover would be a good choice for your "marmot garden."
    • Build a fence: Placing a marmot fence around choice vegetation can be a good alternative, but the job must be done right. Marmots excel at both digging and climbing. The fence must made of mesh wire and be at least four feet tall and preferably bowed outward at the top with the bottom buried 12 to 18 inches into the ground. Or form an L-shaped fence with the lower edge leading outward and buried about 2 inches making it harder for the marmot to dig underneath. In reality, fences are of questionable value in keeping marmots at bay. One exception to this is the use of electrified fencing with multiple wires spaced from just above ground level to about two feet up.

    Rabbits

    What is a rabbit doing in my yard?

    Because Idaho's mountain cottontails and white- and black-tailed jackrabbits can breed repeatedly from late winter through summer and can eat everything from tender vegetable shoots to tree bark, what they're doing in your yard is probably eating and reproducing. Cottontails can produce a new litter (typically, three to five young) as swiftly as monthly reproducing generally February through August. Jackrabbits take a little longer, 43 days gestation period, but may have up to 8 young per litter. Woody and dense vegetation appeals to cottontails, while jackrabbits favor open rangelands and cultivated fields. Although cottontails often seek shelter-hunkering down under brush piles or dense shrubs, hiding in sheds or hightailing it down the proverbial rabbit hole-jackrabbits typically protect themselves by fleeing (at speeds up to 40 miles per hour).

    Benefits and conflicts

    Rabbits can be fun to watch, if you're not watching them eat something you'd rather they left alone. During the growing season, they're particularly partial to tulips, carrots, peas, beans, lettuce, beets and grass, although there's not much in the garden or landscape they won't eat if they're sufficiently hungry. In fall and winter, they turn to young trees and woody shrubs, cleanly clipping off small stems, slicing off buds or gnawing on the bark of young trees or shrubs. They can completely girdle and kill vulnerable woody plants.

    Strategies for coexistence and control

    • Habitat modification: Remove piles of brush and stone and patches of tall weeds, particularly around vulnerable, newly planted trees or shrubs. Ironically, this sort of garden cleanliness discourages cottontails but pleases jackrabbits.
    • Fencing: Fortunately, rabbits are relatively simple to exclude from vegetable, herb or flower patches with inexpensive fences or domes made of 1-inch or smaller-mesh chicken-wire. In the summer, a 2-foot-tall fence will deter cottontails and a 3-foot-tall fence will ward off jackrabbits. In the winter, you'll want to build the fence higher to reflect your area's anticipated snow depth. Either stake the bottom end of the fence tightly to the ground or splay it outward, burying the bent edge about 4 inches underground to thwart digging. Commercial cylinders or home-made cylinders of 1/4-inch hardwire cloth will protect young trees, as long as the cylinders are tall enough to keep rabbits' incisors from reaching above them and far enough from the trunk to keep rabbits from chewing through them.
    • Frightening devices and repellents: A fleet-footed dog is best; many other repellents have been tried, with far more variable results. Read the label carefully; most repellents aren't intended for use on human food and many must be reapplied after rainfall or irrigation.
    • Trapping: If you know of a gardener who wants the company, cottontails are easy to lure into traps and relocate. Be aware that the ecological niche the dearly departed rabbits will leave in your yard will most likely be filled by neighboring rabbits.

    Raccoons

    What is a raccoon doing in my yard?

    The omnivorous, nocturnal and nimble raccoon is either prowling for its preferred or staple foods or on the hunt for a den site. In addition to pet food and garbage, raccoons will eat plants (fruits, nuts and vegetables) and animals (grubs, crickets, grasshoppers, frogs, worms, fish, turtles, squirrels, rabbits, rats, mice, bird eggs and nestlings, among others). Raccoons particularly fond of sweet corn and watermelons. In nature, raccoons will den in tree cavities, brush piles or ground burrows. In our yards, these resourceful and often destructive critters will seek shelter in or under any structure they can enter. That includes attics, chimneys, crawl spaces and wood stacks as well as the areas beneath porches, decks, and sheds. Raccoons typically bear litters of roughly three to six young in April or May. These young will stay with their mothers for about a year. In urban and suburban areas, densities of well-adapted raccoons can reach 100 per square mile.

    Benefits and conflicts

    Raccoons will provide a little help with insect and rodent control, but they can quickly become pests themselves. Besides knocking over garbage cans, raiding vegetable gardens, stealing tree fruit and rolling up freshly laid sod in search of grubs, they can establish dens in chimneys and rip off shingles or fascia boards to enter attics. They may also carry fleas, ticks, roundworms, rabies and canine and feline parvovirus, among other potential health threats to humans and pets.

    Strategies for coexistence and control

    • Habitat modification: If possible, remove woodpiles and trim overgrown shrubbery to reduce cover. Also, be sure to secure your garbage cans and lids and to bring pet food and water in overnight.
    • Exclusion: Before attempting exclusion procedures, be sure there are no young raccoons in the area from which you are attempting to keep the animals out of. Raccoons can readily scale fences and even open simple gates. A good way to keep them from clambering over or digging under your fence is to install a single electrified wire 8 inches from the fence and 8 inches above the ground. If you don't have a fence, two parallel wires-mounted about 6 and 12 inches above the ground on insulated stakes-should also work. A commercial sheet-metal chimney cap or heavy metal screen (installed only if you're certain no young will be trapped inside) offers good protection against raccoons in your attic. Trimming tree branches back 3-5 feet from the roof also helps as long as you don't have other landscape structures they can clamber up. To exclude raccoons from open spaces beneath structures, such as a patio, install 1/4 or 1/3-inch galvanized hardware mesh, burying the bottom edge at least 6 inches deep extending the buried portion outward about 12 inches.
    • Frightening devices and repellents: No chemical repellents have been proven effective against raccoons and no frightening devices will work for very long.
    • Trapping: Raccoons are relatively easily trapped but there may be restrictions about relocating. A trapped raccoon can also be very vicious, so it is advisable to contact a professional wildlife control operator for assistance.

    For more information

    • How to manage pests in landscapes and gardens: raccoons , University of California Statewide Integrated Pest Management Program

    Skunks

    What is a skunk doing in my yard?

    Slow-moving, mild-mannered and severely near-sighted, skunks are nocturnal and nomadic. When they visit your yard, they're either looking for food or shelter or simply passing through. Mice, grasshoppers, beetles, crickets and other insects are all important components of the skunk diet. Skunks will also eat eggs, berries, carrion, snakes, frogs, small birds, rats, rabbits and other small mammals and, of course, garbage and pet food. To a skunk, the dark, quiet and often protected areas under decks, porches and sheds all look like good places to bunk for the near term. Abandoned woodchuck or fox burrows, rocky crevasses, culverts, hollow logs and lumber piles make suitable dens as well. Skunks typically bear one litter a year of two to 10 young. The young are born in May or June and are on their own by fall. The normal home range of a skunk is less than 2 square miles, although breeding males may travel up to 5 miles each night.

    Benefits and conflicts

    Skunks destroy large numbers of garden pests such as grasshopper and beetles. But they can burrow under porches, decks and foundations and slip inside buildings through openings as small as 3-4 inches. Loose in the vegetable garden, they'll waddle over to the sweet corn and eat the lowermost ears. Searching for grubs near the surface of wet lawns, they'll dig 3- to 4-inch-wide cone-shaped holes or upturn small patches of turf. Most annoying of all, when threatened they'll spray to distances of 15 feet or beyond. To their credit, they give fair warning by arching their backs, raising their tails, stamping their feet and shuffling backwards. Uncommonly, skunks also carry rabies.

    Strategies for coexistence and control

    Habitat modification: You can minimize skunk-related problems by:

    • Keeping cellar, basement and crawl space doors closed
    • Sealing and covering all openings, including window wells
    • Removing debris, brush piles and lumber stacks
    • Keeping pet food inside
    • Covering garbage cans
    • Reducing grub and rodent populations
    • Preventing accumulation of ripe fruit on or below fruit trees
    • Taking precautions before letting dogs out at night

    Fencing: Fortunately, skunks aren't skilled at climbing and a fence will normally deter them. They are, however, exceedingly skilled at digging so you'll need a 2-inch wire mesh fence that's not only 3 feet high but that extends 6-12 inches below ground and another 6-12 inches below ground bent outward at a right angle.

    Frightening devices and repellents: No repellents or toxicants are registered for skunks, although ammonia-soaked rags, loud radios and bright lights in denning sites may encourage them to seek shelter elsewhere.

    Trapping: Call a professional wildlife control operator if you feel a skunk must be removed. Be aware that another skunk is likely to take its place, filling the vacancy that removing the first skunk has left in the environment.

    Voles

    What is a vole doing in my yard?

    These small, short-tailed, brown or gray rodents are active year-round, but you're likely to see them only infrequently. They spend most of their time in burrows below ground. Especially during the peaks of their three- to five-year population cycles, voles are drawn to gardens and landscapes with deep mulch and litter and with dense, tall grasses and weeds. They tend to spend their entire, though brief, lives in an area smaller than a quarter acre. They can have one to five litters a year with about three to six young per litter. Unlike pocket gophers, whose burrows are distinguishable by significant above-ground damage, voles leave few visible signs. They reveal their presence by the narrow, aboveground, grassy runways they use between their small burrow openings. Look closely and you're likely to see grass clippings and small green droppings in the runways.

    Benefits and conflicts

    Voles can eat snails and insects, but that may not be enough to endear them to gardeners. In addition to temporarily damaging the turf in their runways by clipping it very close to the roots, voles feed on many different kinds of grasses, herbaceous plants, bulbs and tubers. In the vegetable patch, they favor artichokes, beets, Brussels sprouts, cabbage, carrots, cauliflower, celery, lettuce, turnips, sweet potatoes, spinach and tomatoes. In fall or late winter, they turn to the bark and roots of trees and shrubs, which they can damage significantly.

    Strategies for coexistence and control

    Habitat modification: Keep grasses mowed and remove weedy patches at your garden's edge. Clear a 3- to 4-foot circle around the base of young trees or vines; voles don't like to feed where they can be seen. Minimize spillage from bird feeders. Fencing: Fortunately, voles don't climb well. They can be thwarted by a fence made of 1/4-inch or smaller mesh that's about 12-18 inches aboveground and 6-10 inches below ground. Similarly, cylinders made of 1/4-inch or smaller hardware cloth, sheet metal or heavy plastic, pushed into the ground as deeply as possible without damaging plant roots, will protect young trees, vines and ornamentals. Check these cylinders frequently to make sure the voles haven't dug under them. Frightening devices and repellents: Frightening devices are ineffective against voles and repellents offer only short-term effectiveness. Available poisons can be toxic to humans and pets as well as to nontarget wildlife. Trapping: You can trap small populations of voles with mouse traps baited with a peanut butter-oatmeal mix. Set the traps at right angles to the runways, with the trigger ends in the runways. To reduce access by nontarget birds and other animals, cover the traps with a box through which you've cut a 1-inch hole or enclose the traps in PVC pipe. Check the traps daily. Because voles can carry infectious disease organisms or parasites, be sure to handle their remains with rubber gloves or similar protection.

    For more information

    • Meadow voles and pocket gophers: management in lawns, gardens and cropland, PNW 627
    Wildlife in the garden

    Snakes

    It's probably just passing through, either foraging for food or traveling to and from its winter den. Nearby development may also have displaced it, so it may be temporarily "lost." Wildlife experts say that visiting snakes will generally be long gone before the experts arrive at your home to identify or remove them. If yours is the unusual case where a snake is actually lingering, then it has found a reliable source of food, suitable shelter or both. Of the 12 species of snakes that live in Idaho, the four most likely to cross urban landscapes are:

    • Common garter snake (Thamnophis sirtalis)
    • Western terrestrial garter snake (Thamnophis elegans)
    • Gopher snake (Pituophis catenifer)
    • Western rattlesnake (Crotalus viridis)

    Since 2005, all of Idaho's native snakes have been designated as Protected Nongame. That's because they fulfill a vital ecological role, eating rodents and other pests while serving as food for raptors, coyotes and even other snakes. (Note: Although rarely necessary, it's still legal to kill a snake to protect your personal health and safety and to manage your property.) Read on to learn more about each of these snakes and to decide how you'll respond to their presence on your property.

    Garter snakes

    Description: Idaho's two species of garter snakes are striped, slender snakes ranging in length from 18 inches and 4 feet. The Western terrestrial garter snake is brown or dark gray, with a dull yellow or brown stripe down the middle of its back. The common garter snake is black with red blotches and three stripes: a bright yellow one down the middle of its back and a buff or yellow one down either side.

    Native habitat: Common garter snakes are found statewide, typically near water but also in open meadows and evergreen forests. Western terrestrial garter snakes frequent Idaho's streams, lakes and marshes as well as its desert riparian areas, mountain lakes and mountain meadows.

    Behavior: Adult garter snakes eat toads, frogs and salamanders. The more varied diet of the Western terrestrial garter snake can also include fish, slugs, worms, small mammals and lizards. In your yard, you may find garter snakes hunting for prey near water features or in high grass or other tall vegetation. They take shelter under logs, boards, rocks and other debris.

    Managing conflicts: Garter snakes are harmless. Left alone, they can help you manage rodent populations. If you believe they're taking an unacceptable toll on other wildlife in your garden, take steps to reduce your yard's attractiveness to snakes.

    How to make your yard less attractive to snakes

    • Remove logs, boards, rocks, rotten stumps, leaf and mulch piles and other potential shelters and hiding areas.
    • Discourage rodents and other food sources by keeping grasses mowed.
    • Stack firewood at least 1 foot above the ground.
    • Prune shrubbery at least 1 foot above the ground and away from foundations.
    • Close off access to niches beneath storage sheds by packing soil and installing 1/4-inch or smaller hardware cloth 6 inches deep.
    • Note: No chemical poisons or fumigants have been registered for snake control in Idaho and no repellents have been proven effective.

    Gopher snakes

    Description: Gopher snakes are predominantly tan or light brown, with three rows of dark brown or black blotches along their heavy bodies. Commonly called bullsnakes, they can be from 36 to 80 inches long and pose no danger to humans or pets. They use constriction and suffocation-rather than venom-to kill their prey. However, because the patterns on their backs are similar to rattlesnakes and because they coil, vibrate their tails and even strike when threatened, gopher snakes are often mistaken for rattlesnakes. Look for these differences:

    • Gopher snake tails taper to a thin tip and lack rattles; rattlesnake tails always have rattles (or immature buttons), unless the rattle has broken off.
    • Gopher snake heads are usually narrow, while rattlesnake heads are always triangular.
    • Gopher snake eyes have round pupils, while rattlesnake pupils are vertical.

    When alarmed, gopher snakes make hissing or buzzing noises with their vibrating tails; rattlesnakes make rattling noises. Experts can readily tell the difference, but novices might not.

    Native habitat: Gopher snakes can be found in all parts of the state except northern Idaho. Their very diverse habitats include desert shrub lands, low mountain areas and farm fields.

    Behavior: Gopher snakes are generally active by day, preying on rodents, rabbits and birds. When the weather turns hot, they hunt during the night and rest — often on warm rocks or pavement — during the day. They hibernate during the winter and are out and about between April and October.

    Managing conflicts: Voracious rodent-eaters that can chase their prey both above- and underground, gopher snakes will help you control your pest problems. Odds are you won't have their services for long because they're not likely to linger in your yard. If you're not certain whether your serpentine visitor is a gopher snake or rattlesnake, call in a description to a wildlife expert. If it's clearly a gopher snake and you spot it repeatedly, you can choose to either let it be or take steps to reduce your yard's attractiveness to snakes.

    Western rattlesnakes

    Description: Western rattlesnakes have large, triangular heads, narrow necks and dark brown or black blotches on lighter backgrounds. They can be up to 65 inches long. Unless they're newborn or have been injured, all have rattles at the ends of their short tails. Rattlesnakes kill their prey by injecting venom via two large fangs and then swallowing them whole. Three subspecies (Prairie, Great Basin and Northern Pacific) live in Idaho. They differ mostly in their color patterns, which typically resemble their environments.

    Native habitat: Western rattlesnakes are found throughout Idaho, except at high elevations and in the northern part of the state. They prefer dry, rocky areas with sparse vegetation.

    Behavior: Western rattlesnakes eat mostly mice, ground squirrels and rabbits. They are active from March to November, generally hunting throughout the day in moderate temperatures but preferring the earlier and later hours during the warm summer months. They seek their prey in or near tall grass, rodent burrows, rock outcrops, surface objects or in the open and they take shelter in crevices, caves, mammal burrows and sometimes dense vegetation.

    Managing conflicts: Western rattlesnakes are rarely found in Idaho yards, but homeowners living at the urban-rural interface may occasionally see one. Be aware that well-camouflaged rattlesnakes may be waiting quietly for prey in rock crevices, under logs, in heavy brush or even in tall grass, so be careful where you put your hands and feet. If you hear or see a rattlesnake, move slowly away from it. Few people are bitten by rattlesnakes in Idaho. Although pets have died, no human fatalities have been recorded. You should consider asking for assistance from a wildlife biologist or pest management professional if rattlesnakes are frequenting your yard. Plan to take steps to reduce your yard's attractiveness to snakes. 

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