. The Canadian field-naturalist. 42 The Canadian Field-Naturalist [Vol. XXXIV. American Scoter, Oidemia americana. Plate I, Figs. 1,1a. The adult male is solidly black without spot or touch of other colour except the butter-coloured swelling at base of bill. The female shows a com- paratively normal duck bill, the feathering neither encroached upon nor encroaching on the sides of the bill. There is a more or less well defined dark cap includmg the sides of the crown, contrasting with the cheeks that are evenly coloured instead of showing two diffused light patches as in the other two scoters.
. The Canadian field-naturalist. 42 The Canadian Field-Naturalist [Vol. XXXIV. American Scoter, Oidemia americana. Plate I, Figs. 1,1a. The adult male is solidly black without spot or touch of other colour except the butter-coloured swelling at base of bill. The female shows a com- paratively normal duck bill, the feathering neither encroached upon nor encroaching on the sides of the bill. There is a more or less well defined dark cap includmg the sides of the crown, contrasting with the cheeks that are evenly coloured instead of showing two diffused light patches as in the other two scoters. be traced in a depressed area of soft black velvet- like feathers. The sides of the bill encroaches on the cheek feathering in a square shape and is coloured bright yellow, red and white with a strange squarish spot of black as shown. The female has two lightish patches on the sides of the face like the female White-winged, but the bill surface in- trudes upon the feathering of the cheek in the same square shape as in the male and the feathering of the crown extends half way to the nostril and far beyond that on the sides of the bill. The square black spot at the base of the bill is indicated in the EIDER3 - GENUS] Somateria LE5 EIDERS - GeorcJ ^^^i^^^i-ena H MALE MALE ^..-^^^ ^^^. FEMALE FEMKLLF. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, The Ottawa-Field-Naturalists Club
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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1920, bookyear1920
