. Color key to North American birds; with bibliographical appendix . jfi^^m ^OQT OF RAZOR-BILLED AUK- 9 Synopsis of Orders and Families-. loon. Family 2. LOONS. GaVIID^. Tues four, webbed; toe-nails not broad and flat; tail 3. AUKS, MURRES, AND PUFFINS. ALCID^.Toes three, webbed; toe-nails sharp; tail present. Order II. Gulls, Terns, Jaegers, EtC. LONGIPENNES. (3 families, 42 species, 1 subspecies.) Birds generally seen on the wing, as a lule, over water. Bill strong,thick; hooked in the Gulls and Jaegers; sharply pointed in theTerns; often colored in part yellow or red; wings v
. Color key to North American birds; with bibliographical appendix . jfi^^m ^OQT OF RAZOR-BILLED AUK- 9 Synopsis of Orders and Families-. loon. Family 2. LOONS. GaVIID^. Tues four, webbed; toe-nails not broad and flat; tail 3. AUKS, MURRES, AND PUFFINS. ALCID^.Toes three, webbed; toe-nails sharp; tail present. Order II. Gulls, Terns, Jaegers, EtC. LONGIPENNES. (3 families, 42 species, 1 subspecies.) Birds generally seen on the wing, as a lule, over water. Bill strong,thick; hooked in the Gulls and Jaegers; sharply pointed in theTerns; often colored in part yellow or red; wings very Jong, the outerfeathers much the longest; tail usually short and square in the Gulls,long an:1 forked in the Terns; toes webbed. Color usually pearly grayabove, white below in adult Gull and Terns; Jaegers and many youngliulls are dark.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1912
