Image ID: SIL-SIL13-12-086
Cite this: Baird, Spencer Fullerton. 1860. The birds of North America : the descriptions of species based chiefly on the collections in the Museum of the Smithsonian Institution with the co-operation of John Cassin and George N. Lawrence Atlas (1860), Philadelphia : J.B. Lippincott & Co.
Supplied Caption: 1. White-crowned Sparrow 2. White-crowned Sparrow 3. Slate-colored Fox Sparrow 4. Thick-billed Fox Sparrow
Original Caption: Birds--Pl LXIX
Taxonomic: 1. Zonotrichia gambelii. 2. Z. leucophrys. 3. Passerella schistacea. 4. P. megarhynchus