In North America the
orioles weave pouches that hang from the limbs of trees.
They use the fibers of nearby plants to create the structure which they
line with hair, plant down, wool and fine mosses.
Other birds in other parts of the world
like, oropendolas, caciques, weavers and sunbirds also weave these
kinds of nests.
Bullocks
Orioles weave oval-shaped bags about 6 inches long, attached
to vertical twigs in the branches of cottonwood, birch, willow and
other good-sized trees. The nest made of plant fiber is
lined with horsehair, plant down, wool or fine mosses.
Oriole Nest in Cottonwood Tree, by Eric Huish
İEric Huish
The
female usually lays 4 or 5 eggs which she incubated for about 14
days.
Young Bullock's Oriole, by Mike Fish
İMike Fish
The
young birds fly from the nests after about 14 days.
Bullocks
Orioles weave oval-shaped bags about 6 inches long, attached
to vertical twigs in the branches of cottonwood, birch, willow and
other good-sized trees. The nest made of plant fiber is
lined with horsehair, plant down, wool or fine mosses.
The
female usually lays 4 or 5 eggs which she incubated for about 14
days. 
The
young birds fly from the nests after about 14 days.