Watercolor, graphite, pastel, black ink, black chalk, and gouache with scratching out and selective glazing on paper, laid on card
Paper: 25 5/16 x 38 3/16 in. (64.3 x 97 cm)
Mat: 39 x 53 in. (99.1 x 134.6 cm)
Inscribed at lower left in graphite: "J.J.A. No 70 -- Plate 346"; at lower center: "Black-throated Diver / Colymbus arcticus, Linn. 1 Adult male Spring plumage -- 2 female, 3 Young first Autumn"; birds numbered from left to right: "1"; "3"; "2"
Young, winter plumage, center; adults, summer plumage, left and right; formerly Arctic Loon: Pacific Loon recently distinguished from the Arctic Loon by the lack of white rear flanks, a slightly thinner neck, rounder head, and more horizontal bill position.
Purchased for the Society by public subscription from Mrs. John J. Audubon
Due to ongoing research, information about this object is subject to change.