. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin — Cory. 43 Family LARID^?!,. Gulls and Terns. Subfamily LARIN^E. Gulls. Upper mandible, curved; unguis (end of bill), not swollen; nos- trils, near middle of upper mandible; middle tail feathers, about equal in length to the others; tail, rarely dark, although sometimes tipped with black or brown; hind toe, small, but always present except in one genus; bill, without Glaucous Gull. Herring Gull. Great Black-backed Gull. Bonaparte's Gull. *GROUP 1. Wing, to 11 inches long. Under parts, w
. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin — Cory. 43 Family LARID^?!,. Gulls and Terns. Subfamily LARIN^E. Gulls. Upper mandible, curved; unguis (end of bill), not swollen; nos- trils, near middle of upper mandible; middle tail feathers, about equal in length to the others; tail, rarely dark, although sometimes tipped with black or brown; hind toe, small, but always present except in one genus; bill, without Glaucous Gull. Herring Gull. Great Black-backed Gull. Bonaparte's Gull. *GROUP 1. Wing, to 11 inches long. Under parts, white; inner web of first primary, white, with black spot near the end; the tip, white; shaft of feather, white; adult birds have the bill dark re'd; in immature birds it is brownish. Larus franklinii. Franklin's Gull. See No. 19. * For directions for measurement, see page 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 Cory, Charles B. (Charles Barney), 1857-1921. Chicago
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Keywords: ., bookauthorcory, bookcentury1900, bookdecade1900, booksubjectbirds
