Chickens have no sweat glands, so chicken breeds that originated in hot climates have developed other features to help them stay cool. One is to grow a large comb and wattles, through which blood circulation increases in hot weather to help dissipate body heat. Another warm-climate adaptation is to avoid trapped heat by developing sparse […]
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The air temperature range at which chickens maintain the best health and productivity is between 70°F and 75°F. As the temperature rises above this range, physical adaptations — such as a large comb and wattles — help some breeds release body heat. All breeds also engage in behavior modifications that allow chickens to keep themselves […]
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Most chickens have four toes on each foot. Of the chicken breeds found in the United States, five breeds typically have five toes on each foot. The condition is technically known as polydactylism — from the Greek words poly meaning many, and daktylos meaning a finger or toe. The trait of having five toes represents […]
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All hens start out laying small eggs. As the birds mature, the egg size increases until it reaches the normal size for the breed. Many breeds will end up laying small or medium size eggs, while most baking recipes call for large eggs. Chicken keepers who do a lot of baking therefore prefer chicken breeds […]
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A broody hen stops laying eggs when she starts setting. Therefore, throughout the ages poultry keepers who have raised chickens primarily for eggs have culled persistently broody hens. In other words, they selectively bred in favor of non-setters. As a result, the breeds best known for superior laying ability are less apt to brood than […]
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Chickens that free range may occasionally encounter weeds that are toxic. Even so, most toxic plants don’t taste good, so chickens are rarely tempted to eat them. Besides, birds peck a little here and a little there to get variety in their diet. A bite or two of a toxic leaf or seed will rarely […]
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Until the 1960s, no one was able to determine the function of a chicken’s cloacal bursa. That year, in an attempt to find out, Ohio State University graduate student Bruce Glick performed bursectomies on some chickens. But it didn’t seem to make any perceivable difference. Unintended Consequences Then a fellow graduate student, Timothy Chang, borrowed […]
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Unlike cows and sheep, chickens are not primarily grazers and cannot digest large amounts of tough fiber. Short pasture perennials are therefore more suitable than taller plants as forage for free range chickens. But, like any pasture, forage for chickens must be suitable for the climate and properly managed. Warm Season Forage Among warm-season greens, […]
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A chicken — or any other poultry — that persists in flying out of its enclosure can be an annoyance. It may destroy vegetable gardens and flower beds (yours or your neighbor’s). It may get into the wrong pen and mess up your breeding plan. Worse, it could get run over on the road or […]
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Vultures are often blamed for killing chickens that were already dead when they got there. Vultures are primarily scavengers. They subsist mainly on animals that have been dead for two to three days. A vulture is a large, black raptor with an exceptionally wide wingspan. It flies in large, languid circles while seeking something to […]
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