Note 62 — The Birds of Washington (continued 10)
Reading edition
Ridgway (B. of N. & M. Am.) recognizes two color phases of this bird, a white- and a yellow-bellied. In the latter the plumage of upperparts inclines more strongly to olivaceous.
Reading edition
Ridgway (B. of N. & M. Am.) recognizes two color phases of this bird, a white- and a yellow-bellied. In the latter the plumage of upperparts inclines more strongly to olivaceous.