Both the male and female American robin are gray-brown birds with yellow bills and reddish-orange breasts, but the male’s head is usually darker than the female’s. Robins in the eastern part ...

Its calls are usually loud and often provide the best evidence to the presence of the bird ... yellow-billed cuckoo has a slender body, a long tail, and rounded wings. Adults have grayish brown ...

Adult: gray and yellow areas of underparts fairly bright, with abrupt gray-yellow contrast on breast. Outer pairs of tail feathers extensively rufous on inner webs; dark shaft stripes and rufous ...

Brown pelicans have three annual plumages. For most of the year, the head is pale yellow and the neck is white Before the ... pelicans and destroyed numerous nesting islands, putting the bird in more ...

The small brown bird weighs around 16 grams (roughly half an ounce) and has black and yellow bands along with a large beak. The finding, which was reported in the science journal Nature ...