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Courtesy of UC Berkeley, Bancroft Library
http://www.oac.cdlib.org/ark:/13030/k65t3s9x/?order=1
Title:
Pheucticus melanocephalus. Black-headed Grosbeak.
Description:
"Laurel <emph render="italic">[Umbellularia californica] . . . Hot Springs, Napa -June 1859" --Two adults with two young on a branch; female offers one of the young an insect.
Contributing Institution:
UC Berkeley, Bancroft Library