Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Banks
1960
Hesperiphona vespertina
June 12 Sand Flat, 6200 ft., Mt. Shasta, Siskiyou Co., Calif. - Evening grosbeaks are abundant here. Saw a pair early in a.m. Others can be heard calling in the tops of the 160ft. trees around camp, and else where in the forest. Saw a & down low in a clump of small fir, she may have nest there. The birds stay high in the trees - may not forage. I think this is the species I have seen gliding between the trees, not sure.
Their note is very Campodacus-like, and much of the time I am not sure what I am hearing.
June 13 Saw a & low in a small tree and shot it. Only wounded it, and when I approached it, it faced me and opened that big, white bill. I was very careful how I picked it up. A & flew from the tree when I shot - I hadn't seen her. This species is common all the way to Parker Meadow, 7500 ft., 3 mi. away.