This bird measures 17 to 22 cm (6.7 to 8.7 in) long and spans 23 to 32 cm (9.1 to 13 in) . They have a sturdy body, and longish tail. The body weight averages 33.8 g. Adults have white bars on the wings. The male is orange on the underparts shoulder patch and rump, some appear a very deep flaming orange while others appear yellowish-orange, the rest of the male's plumage is black. The adult female is yellow-brown on the upper parts with darker wings, and dull orange-yellow on the breast and belly. The young oriole is similar to the female.
Habitat and Distribution
These birds are found also in the Nearctic in summer.They breed from Wisconsin to Maine and south to central Mississippi, Alabama and northern Georgia. They migrate to winter in the neotropics in Mexico but predominantly in Central America and northern South America. Some areas of the southern United States may retain orioles all winter if they have feeders that appeal to them.
Baltimore Orioles forage in trees and shrubs, also making short flights to catch insects. They prefer ripe, dark colored fruits and their favourite prey is the Forest Tent Caterpillar Moth.
The Baltimore Oriole's nest is built by the female. It is a tightly woven pouch located on the end of a branch about 7-9 m from the ground. The female lays 3-7 eggs which are pale grey to bluish white in color. Incubation period is 12 to 14 days.
Calls and Songs
A loud fluety whistle , with a buzzy, bold familiar song is made by the male usually from a tree canopy thereby giving away the bird 's location from a distance.