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 ...

with abrupt gray-yellow contrast on breast. Outer pairs of tail feathers extensively rufous on inner webs; dark shaft stripes and rufous extend to feather tips. Bill proportionately long ...

They are the state bird of Iowa, New Jersey, and Washington. ・Brown-headed Cowbirds ... is a striking bird with a yellow body ...