A nomenclature of colors for naturalists : and compendium of useful knowledge for ornithologists (1886)
Ridgway, Robert, 1850-1929, Wetmore, Alexander, 1886-1978 former owner. DSI, John Wilson and Son, printer · Boston : Little, Brown and Company · leaf 178
) The Mantle includes the back, scapulars, and outer or upper surfaceof the wings. The Crissum is properly that portion between the lower tail-coverts andanal region which in the figure is concealed by the primaries. When thelower tail-coverts and crissum are different in color, they are then… … %w ^—
Birds · Ornithology · Color
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