The female and the immature can be confused with a dull Baltimore oriole. Female and immature hooded orioles are entirely yellow below, slimmer, and longer tailed and have a thin, downcurved bill.

The Bullock’s oriole, a native of the Great Plains or Far West, typically spends winters in Mexico. Bruce Beehler is a naturalist and author, whose books include “Natural Encounters” and “Birds of ...