Conservation scientist Charles van Rees, Ph.D., explains when it is safe to remove or relocate birds nests, prioritizing the ...

Learn to identify bird eggs and discover how egg color, size and incubation change from species to species. Ruby-Throated Hummingbird Eggs. Clutch size: 2 eggs.

It was nature’s version of an Easter egg hunt. Dr. Claire Spottiswoode, a professor at the University of Cape Town who studies avian (bird) brood parasites, was working in Zambia to learn more ...

Birds building nests with a center cup, a depression to hold the eggs, can lay eggs with ends gently oval. Ditto birds that nest in cavities. Eggs are unlikely to roll out of those nests.

For eastern phoebes, a single nest requires so much incubating that splitting up the effort is almost sure to fail.

In a first, fossil bird found with unlaid egg “I couldn’t even sleep at night,” the lead paleontologist says of her reaction to the discovery.

The risk of bird flu to humans is low, but eating undercooked eggs or chicken could increase your chances of exposure to infection and germs.