A female black-headed grosbeak about to feed young on a fir limb.

A male black-headed grosbeak and young on a fir limb. Young with mouth open.

A male black-headed grosbeak about to feed young in an arrow wood.

A male black-headed grosbeak on arrow wood with food for young.

A female black-headed grosbeak at its nest. Image note: best. Copyright 1905,

A female black-headed grosbeak at nest looking for excrement.

Two young rufous hummingbirds in nest in spirea in south Portland.

Two young rufous hummingbirds in nest in spirea in south Portland.

Two young rufous hummingbirds in nest in spirea in south Portland.

Two young rufous hummingbirds in their nest on a fir limb in south Portland.