Built in June on the fork of a horizontal conifer branch near the trunk at low to moderate height, the yellow-rumped Warbler’s nest contains 3 to 6 eggs. Polytypic (6 ssp.). Length 5.3".

Females lay a clutch of 4 to 5 eggs and do most of the incubation duties, although the males do assist. Young leave the nest less than two weeks after hatching. Meet the majestic magnolia warbler.

who lay their eggs in the nests of other bird species—including warblers—and divert resources away from their chicks. Kirtland's warblers were classified as endangered under the Endangered ...

She then swallows one of the eggs that’s been laid there and lays ... the provider is a reed warbler, a common host. Franka Slothouber, a retired photo editor who’s an avid wildlife ...

At these lakes, the cuckoos were specialists in reed warbler eggs. I decided to check for signs and discovered 13 reed warbler nests, but again none had cuckoo eggs inside. But as these young ...