This bird was formerly
considered to belong to the same species as the more eastern Baltimore
Oriole, under the combined name of "Northern Oriole". The
Bullock's Oriole is the "western" species, found in the western half of the
continent, while the Baltimore Oriole is found in the East. Many South
Dakota birds are variously intermediate between the two extremes, as the two
species interbreed where their ranges come into contact.
Habitat: Areas of forest edge or open forest, such
as woodlands, shelter belts, isolated tree groves, or residential areas.
Diet: Primarily feeds on insects during the summer
months. Will also eat berries and fruits.
Behavior: Forages by climbing and flitting through
the foliage and branches of trees and shrubs, gleaning insects from
vegetation surfaces, as well as flying out to capture nearby insects in
Nesting: June and July in South Dakota. The nest
is a large hanging pouch, built of grasses, weed stems, and other long material
that can be woven into the nest structure. The female usually lays 4 or 5
eggs, and she alone incubates them. Once the eggs hatch, both parents help
to feed the nestlings. The young leave the nest about 2 weeks after
Song: Short series of nasal whistled notes.
Migration: Neotropical migrant. Summers
throughout most of the western United States, summers in Mexico and points
Baltimore Oriole. Click
here to see a comparison between the two.
Bird Feeders: Will attend feeders for oranges and
other fruit, as well as nectar.
Cornell University's "All About Birds - Bullock's Oriole"
eNature.com: Bullock's Oriole
Photo Information: June 28th, 2003
-- Red Canyon in Fall River County --