. Birds of America;. Birds -- North America. KINGLETS AND GNATCATCHERS Order Passcics; suborder Osciiics: family Sylvilihc HE Syh'iidcc family is part of the larger group of singing Ijirds. It is found in the northern hemisphere in general and in the greater part of the tropical countries of the western hemisphere; it is most numerously represented in the northern part of the eastern hemisphere. It contains a wide variety of forms. The relatively few American forms belong to two groups, one of which, the Gnatcatchers, consisting of a single genus, is peculiar to America, while the other includ
. Birds of America;. Birds -- North America. KINGLETS AND GNATCATCHERS Order Passcics; suborder Osciiics: family Sylvilihc HE Syh'iidcc family is part of the larger group of singing Ijirds. It is found in the northern hemisphere in general and in the greater part of the tropical countries of the western hemisphere; it is most numerously represented in the northern part of the eastern hemisphere. It contains a wide variety of forms. The relatively few American forms belong to two groups, one of which, the Gnatcatchers, consisting of a single genus, is peculiar to America, while the other includes two genera, one of which, the Kinglets, is circumpolar and the other, the Willow Warblers, is of northern Europe and Asia, but is sometimes included among the birds of North America because of the occurrence of a single Siberian species {Acaulliopnaislc borcalis), in western Alaska. The American forms of the family are distinguished by the following characteristics: bill, much shorter than the head, slender, and rather broad and depressed at the base; nostril at least partly exposed, sometimes partly covered by bristly feathers turned upward; distinct bristle's at the corners of the mouth; wings, rather long but with rounded tip; tail, variable as to relative length but usually decidedly shorter than the wings (longer only among the Gnatcatchers), even, notched, slightly double-rounded, or (in the Gnatcatcher group) much rounded, the feathers usually broad and rounded at the tips but sometimes (in the Kinglet genus) somewhat pointed. In coloration, the Sylviida: are plain olive, olive-green, brown, or bluish-grav above; wings and tail, sometimes crown also, Idack, and side tail-feathers partly white in the Gnatcatchers, the crown of the Kinglets with a yellow, orange, or red patch, and under parts whitish,yellowish. or pale grayish. The sexes are usttally alike or nearly so, and the young as a rule do not differ materially from the adults — the young of the Kinglets lack t
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Keywords: ., bookauthorpearsont, bookcentury1900, bookdecade1920, bookyear1923
