. The birds of eastern North America : known to occur east of the ninetieth meridian. Birds -- North America. KEY TO LAND BIRDS. GROUP 1. Birds having wings less than inches long.* (1.) Smallest of our birds; bill, very slender; " primaries, 10; rectices, 10; feet, very small and weak. Family TROCHILIDXE. Humming Birds. See page 199. (2.) Tail, rounded; the outer feathers, shorter than mid- dle ones; first primary, less than two thirds as long as third; second primary, much shorter than third ; tarsus, scutellate. Family TROQLODYT1D/C. Wrens, Thrashers, etc. Subfamily TROG
. The birds of eastern North America : known to occur east of the ninetieth meridian. Birds -- North America. KEY TO LAND BIRDS. GROUP 1. Birds having wings less than inches long.* (1.) Smallest of our birds; bill, very slender; " primaries, 10; rectices, 10; feet, very small and weak. Family TROCHILIDXE. Humming Birds. See page 199. (2.) Tail, rounded; the outer feathers, shorter than mid- dle ones; first primary, less than two thirds as long as third; second primary, much shorter than third ; tarsus, scutellate. Family TROQLODYT1D/C. Wrens, Thrashers, etc. Subfamily TROGLODYTIN/E. Wrens. See page 312. GROUP 2. Birds having wings from to inches long.* Section 1. First primary, less than half as long as third. Part 1. Tip of upper mandible, with small but distinct hook or notch. (1.) Toes, joined at base. Plain colored birds, usually greenish or grayish, but often show a faint wash of yellow on uuderparts; tail, always without white 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 : Field Columbian Museum
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Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
