Chickens Prefer Attractive People

The barnyard bird is a lot smarter than you think.

We know the importance of having a little light to get through the dark days of winter.

It's important for chickens, too.

When Danielle Smith asked, “Why do chickens need a lot of hours of light to lay eggs?” we checked in with some poultry professionals.

Hens are "photo-stimulated," which means they require light to produce eggs, says Claudia Dunkley, a poultry scientist at the University of Georgia.

After being exposed to 12 hours of natural or artificial light, the chicken's hypothalamus causes the release of a reproductive hormone that spurs egg laying. The hormone, gonadotropin, is the same one that kickstarts the human reproductive cycle. (Also read how a rooster knows to crow at dawn.)

In winter, when there's less daylight, birds

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