Wilson, Alexander, 1766-1813. / American ornithology; or The natural history of the birds of the United States
Oriolus spurius, orchard oriole. 1. Female. 2. and 3. Males of the second and third years. 4. Male in complete plumage. a. Egg of the orchard oriole. b. Egg of the Baltimore oriole, pp. 4 ff.
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