The Black-headed Vireo
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John Cassin (1813-1869)
Plate 24, The Black-headed Vireo
From: Illustrations of the Birds of California, Texas, Oregon, British and Russian America
Philadelphia: J.B. Lippincott & Co., 1856
Paper dimensions: 10.5 x 7"
Framed dimensions: 12.75 x 21"
With text below image:
The Black-headed Vireo is a small bird native to the United States and Mexico. This songbird is about 12 cm (4.5 inches) in length. Sexually mature males are olive green and white below with faint yellow flanks. The crown and upper half of the head is a black with a partial white eye-ring and lores. The iris is brownish-red and the bill is black. Females are duller in color than males and have a slate gray crown and underparts washed with greenish yellow. First year males often (but do not always) have more extensive gray in the cap, similar to adult females. This bird has been listed as an endangered species in the United States since 1987. The IUCN lists the species as vulnerable.