Bullock's Oriole

The rich, fluty song of the male Bullock's Oriole gives its presence away long before it
is sighted. Both sexes are generally difficult to spot because they spend a good deal of
time foraging high in the tree canopy. They are unusual in their liking for hairy cater-
pillars, an item that most birds avoid.
Bullock's Orioles use a variety of plant materials to construct very strong and durable
hanging nests, which they suspend from the tips of branches. Nests are most often
built in black cottonwood trees or other deciduous trees, where they are visible the fol-
lowing winter when leaves fall, and they may remain for several years.

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