. Chiave per gli uccelli del Nord America. Contenente un resoconto conciso di ogni specie di uccelli viventi e fossili attualmente nota dal continente a nord del confine tra Messico e Stati Uniti, compresa la Groenlandia e la bassa California, con cui sono incorporate ornitologia generale: Un profilo della struttura e classificazione degli uccelli; e ornitologia di campo, un manuale di raccogliere, preparare, e preservare uccelli . rnis, un uccello: notando l'abbondanza di 0. agilis nell'alto.) Bush Warblers. Disegno di legge dei comuni personaggi di Sylvicolina. Setole di Eictalmi corte ma evidenti. Ali appuntite, molto più lunghe

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. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated general ornithology: an outline of the structure and classification of birds; and field ornithology, a manual of collecting, preparing, and preserving birds . rnis, a bird: noting the abundance of0. agilis in the tall.) Bush Warblers. Bill of ordinary Sylvicoline characters. Eictalbristles short but evident. Wings pointed, much longer than tail; 1st quiU nearly or quitelongest. Tail nearly even, with acute feathers; wings and tail unmarked, like the back. , Under tail-coverts long and copious. Tarsus about equal to middle toe and claw. Feet pale-colored; back, wings, and tail olive; under parts yeUow; black or ashy on head. Sexes alike. Analysis qf Species. Head without black ; crown and tbroat ash; a whitlsheye-rlng agilis 139 Head with black; line over eye and under parts yellow . formosa 140 139. O. a/giUs. (Lat. agilis, agUe, active.) Connecticut Warbler. Olive-green, becomingashy on the head; below, from the breast, yellow, olive-shaded on the sides; chin, throat, andbreast dark ash; a whitish ring round eye; wings and tail unmarked, glossed with olive;under mandible and feet pale; no decided markings anywhere. Length about 5.50; extent. 310 SYSTEMATIC SYNOPSIS.—PASSEBES— OSCINES. 8.50-9.00; wing 2.75-3.00; tail 2.00. In spring birds the ash of the head and throat is quitepure, and very dark, almost black on the breast; then the resemblance to Geothlypis Phila-delphia is close; but in the latter the wings are little if any longer than the tail. In the fallthe upper parts from bill to tail are nearly uniform olive, and the ash of the throat is pale.Eastern U. S., not commonly observed in the spring ; abounding in the fall in some localities;a shy, fugitive inhabitant of brushwood and thickets. Distribut

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890
• booksubjectbirds
• bookyear1896