You likely know that most birds lay eggs in early spring, but what about those nests you see full of baby chicks even later in the year? They may have made you wonder about birds who lay their eggs at ...

Q. I saw a photo of different kinds of bird eggs and noted not only the obvious, that smaller birds lay smaller eggs, but also that some bird eggs are elongate whereas others are more rounded. What is ...

The number of eggs a bird lays — its clutch size — varies greatly among species. You might think every species should simply lay lots of eggs because that would increase the odds of more young birds ...

Desert birds lay larger eggs when they have more helpers to feed their chicks, new research shows. White-browed sparrow weavers live in family groups in which only a dominant pair breeds and their ...

CHICAGO — It’s springtime, and the birds are chirping as they begin to build their nests. Researchers say the hands-on clock is turning back, though it happens like clockwork each year. Many species ...

Southeast area residents of Woodland residents may be fighting a losing battle against those “no-see-ems” swarming out of the Yolo Bypass this time of year. But the birds which feed in part on the ...

A once-extinct bird is laying eggs in the wild for the first time in nearly 40 years. Sihek, a now-endangered bird returned to the wild in 2024, has laid wild eggs in its new home in Hawaii, according ...

A critically-endangered bird is making a comeback on the Galapagos Islands. Experts from the Charles Darwin Foundation and the Galapagos National Park Directorate who formed part of The Mangrove Finch ...

Q. I saw a photo of different kinds of bird eggs and noted not only the obvious, that smaller birds lay smaller eggs, but also that some bird eggs are elongate, whereas others are more rounded. What ...