Will a Groundhog Kill a Chicken? Protecting Your Backyard Flock

ACTIONS TO PREVENT PREDATION

Once you have identified which predators are causing problems with your flock, you can take actions to thwart their attacks. These actions may involve changing a flock’s enclosure, modifying the habitat around the area where you keep a flock, using a guard dog, or seeking assistance from wildlife services.

IDENTIFICATION OF THE PROBLEM PREDATOR

The best long-term solution for protecting your flock is preventing predators from getting to it. Of course, this tactic is easier said than done. To develop an exclusion plan, you need to determine which type of animal is preying on your birds.

Often, the condition in which you find your flock is an indicator of which predator is involved.

• If adult birds are missing but no other signs of disturbance exist, the predator probably is a dog, a coyote, a fox, a bobcat, a hawk, or an owl. These predators typically are able to kill, pick up, and carry off an adult chicken. Hawks typically take chickens during the day, whereas owls take them during the night.
• If chicks are missing but no other signs of disturbance exist, the culprit may be a snake, a rat, a raccoon, or a house cat. Such predators sometimes leave some feathers and wings scattered away from the site because they are not able to swallow these parts.
• If birds are dead but not eaten and have parts still intact, a weasel may have attacked the flock. Often the chickens’ bodies are bloodied. Also, you might notice that internal organs have been eaten.
• If birds are dead and not eaten but are missing their heads, the predator may be a raccoon, a hawk, or an owl. Raccoons sometimes pull a bird’s head through the wires of an enclosure and then can eat only the head, leaving the majority of the body behind. Also, raccoons may work together, with one scaring the chickens to the far end of a pen and the other picking off the birds’ heads.
• If birds are only wounded, not dead, various predators may be to blame. If birds show signs of bites all over, a dog may have attacked the flock. Dogs do not have sharp enough teeth to consume animals cleanly. If the wounds are on the breasts or legs of young birds, an opossum may be the problem. Bites on the hocks of young birds often indicate that rats have preyed on the flock. If birds have bites and show signs that their intestines have been removed through their cloacae, the attacker may be a member of the weasel family or cannibalism may be occurring in the flock.
• If eggs are missing, one of several predators—including skunks, snakes, rats, opossums, raccoons, blue jays, and crows—may be at fault.

In addition to examining the condition of your flock, you may be able to identify tracks of a predator that is a mammal. To view tracks more easily, put fine sand or talc powder around the area, and look for tracks the following day. The s of tracks shown in the next section of this article may help you identify a predator.

To understand how and why various animals attack poultry flocks, it can be helpful to know more about their behaviors. Knowledge of predator behavior provides background you can use as you try to identify and address predators of your flock.

Domestic dogs allowed to run free in a neighborhood can be a problem for poultry flocks. They often kill simply for the fun of it. Dogs descended from the wolf and have retained some of the hunting instinct of this predecessor. Not all dogs will attack a poultry flock. In fact, some breeds are good guard dogs for a flock. Factors that contribute to the likelihood that a dog will attack a flock include the breed of the dog, the presence of other dogs, and the dog’s past experiences. Some breeds have a greater tendency to chase prey than others. This inclination can be heightened by the presence of other dogs, often resulting in pack behavior. Also, if a dog has had success in the past at getting food by attacking a poultry flock, it is more likely to repeat the behavior.

Although coyotes have been seen traveling in large groups, they usually hunt in pairs. Coyotes are primarily nocturnal (active at night) but often can be seen during daylight hours. They were once diurnal (active during the day) but, through adaptation, have developed more nocturnal habits to adjust to habitat pressure from humans.

The most common wildcat in the United States, the bobcat is only about twice the size of a typical domestic cat. Like cats, bobcats can see in low light. They prefer to hunt during the twilight hours of dawn and dusk but will attack any time of day. They can easily carry off a chicken or two from your flock. A bobcat may eat an entire bird in a single feeding or carry the carcass away. Bobcats prefer woodlands but will venture into backyards in search of prey, especially where housing encroaches on their normal habitat.

Even if well-fed, domestic cats will kill young birds. Cats are messy eaters that tend to leave parts of prey in the open areas where they have eaten. Typically, they eat the meaty portions of a bird and leave the skin, with feathers attached. With smaller birds, however, cats often consume the whole bird, except for the wings and scattered feathers. In addition, cats usually leave teeth marks on every exposed bone of prey they have eaten.

Foxes, red foxes in particular, prey on poultry flocks. Foxes usually attack a bird at the throat, but some kill by multiple bites to the neck and back. Normally when a fox has been in the hen house, evidence includes only a few drops of blood and feathers. The fox carries away the dead bird, often to a den. Foxes also eat eggs. They usually open the eggs just enough to lick out the contents and leave the shells beside the nest. Most foxes live in wooded areas or on open plains, where they dig dens in the ground. They sometimes use hollow logs for dens. Gray foxes, the only foxes that readily climb trees, may den in hollow cavities of trees.

Raccoons enter poultry houses and take several birds in one night. They often tear and chew a bird’s breast and crop and sometimes eat the entrails. They may remove eggs from the nest and take them away, usually within 9 meters (28 feet) of the nest, to eat them. Garbage cans and dumps can be major sources of food, attracting raccoons to urban areas. Once settled in an area, raccoons will seek other food sources, including backyard poultry flocks.

The least weasel has been referred to as the smallest living predator. It is long and slender, with a long neck, a narrow head, and short limbs. Least weasels weigh only about 30 to 55 grams (1 to 2 ounces) and are usually 165 to 205 millimeters (6-1/2 to 8 inches) long, with much of that length is the tail. They are seldom seen and rarely trapped. They are active day and night and in winter and summer, and they do not hibernate. When a Least Weasel kills, it wraps its body and limbs around its prey and kills with a bite to the base of the skull. Least weasels can squeeze through holes as small as 1/4-inch in diameter. Consequently, they typically can get through chicken wire. Because a weasel must eat food equal to four times its body weight each day, weasels are voracious eaters.

Skunks do not kill many adult birds. In general, when a skunk attacks a flock, it kills only one or two birds and mauls others considerably. Also, skunks love eggs. Usually, a skunk opens an egg at one end and punches its nose into the hole to lick out the contents. Eggs that have been eaten by a skunk may appear to have been hatched, except that the edges of their openings are crushed. A skunk may remove eggs from a nest but rarely carries them more than 1 meter (3 feet) away.

Opossums are omnivorous in that they eat birds, fish, insects, mushrooms, fruits, vegetables, and even eggs. When an opossum raids a poultry house, it usually kills one bird at a time, often mauling its victims. It causes eggs to be mashed and messy, often chewing the shells into small pieces and leaving those pieces in the nest. Opossums usually begin feeding on adult poultry at the cloacal opening. They consume young poultry completely, typically leaving behind only a few wet feathers.

Snake predation can be hard to identify because snakes eat their prey whole. For example, a snake can eat an egg whole, so the only sign of intrusion is a missing egg. The aftermath of a snake’s egg-eating activity differs from that of raccoons and skunks, which typically leave shells behind after eating eggs. Rat snakes are known to eat eggs and young chicks (those less than a month old). The size of the hole needed to get to a flock depends on the size of the snake. Also, a snake must be able not only to enter the enclosure but also to exit after swallowing its prey. Typically, snakes able to enter through gaps that are 1/4-inch in diameter or smaller do not cause predation damage.

Of the variety of hawk species that prey on poultry flocks, the most common are Red-tailed, Red-shouldered, and Cooper’s hawks. Hawks typically take their prey during the day. They have very keen eyesight and scan for prey from elevated perches. When a hawk spots prey, it swoops down and lands on the prey with its talons, often killing the prey on impact. A hawk may carry off a young or bantam bird and eat it elsewhere, leaving no indication of predation other than a missing bird. If a hawk eats a bird in place, it typically eats the breast, cleanly plucking the feathers. Feathers with flesh clinging to their ends may indicate that a hawk did not kill the bird but instead scavenged on a bird that died of some other cause.

Red-tailed hawks live in various habitats, including scrub deserts, grasslands, farm fields, pastures, parks, and woodlands. They need an open hunting area with several scattered perches. The red-tailed hawk is one of three species sometimes referred to as chicken hawks, although it rarely preys on standard sized chickens.

Red-shouldered hawks live in forests and swamps. They may store food near their nest to eat later. Though red-shouldered hawks usually eat rodents and other small mammals, they will eat poultry if the opportunity arises. They sometimes are referred to as hen hawks.

Cooper’s hawks, which can fly well through heavily wooded areas, prefer to live in deciduous and mixed forests.

The owl that most commonly preys on poultry flocks is the great horned owl. Normally, barn owls and screech owls do not bother poultry flocks. Owls are more active at night, and that is when they typically take birds. Great horned owls live in many types of habitats, from coastlines to grasslands to mixes of woods and open fields. Great horned owls eat many kinds of animals, including chickens, ducks, and other poultry.

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