Pullin developed two new tests to measure behavioral reactivity in the hens. The first uses a startle chamber, where birds ...

Have you ever noticed that chicken eggs come in more than just white or brown? Some are blue, green, cream, pink, and even ...

White leghorn chickens lay white-shelled eggs ... An olive egg results from a cross between a brown egg-laying breed and a blue egg-laying breed. The hen produces a brown pigment that blends ...