424 * MANUAL OF PHILIPPINE BIRDS. 



Family HIRUNDINID^. 



Bill weak, short, flat, and broad, the edges smooth ; a small notch near 

 end of upper mandible; ciilmen nearly straight, except at tip; nostrils 

 exposed; rictal bristles small- and weak; wings long and narrow; prima- 

 ries nine, the first slightly longer than the second; secondaries very 

 short; tail more or less forked; tarsus and toes slender, moderate in size, 

 usually unfeathered. 



Genera. 



a\ Toes and tarsus thickly covered with short feathers Chelidonaria (p. 424) 



a'. Toes, and usually the tarsus, entirely devoid of feathers. 



V. Upper parts dull earthy bro^vn witli no gloss; tail but slightly forked. 



Riparia (p. 425) 

 h". Upper parts glossed with green or steel-blue; tail deeply forked, and some- 

 times very long Hirundo (p. 426) 



Genus CHELIDONAEIA Eeichenow, 1889. 



Plumage of upper parts black, glossed with blue, bases of the feathers 

 white; a white band across rump; tail nearly square; tarsi and toes 

 thickly clothed with short feathers. 



387. CHELIDONARIA DASYPUS (Bonaparte). 



SIBERIAN SWALLOW.* 



Chelidon dasypus Boxaparte, Consp. Gen. Avium (1850), 1, 343; Shaepk, 



Cat. Birds Brit. Mus. (1885), 10, 91. 

 Chelidonaria dasypus Shaepe, Hand-List (1901), 3, 188; Gates and Reid, 



Cat. Birds' Eggs (1903), 3, 230; McGregor, Bull. Philippine Mus. 



(1904), 4, 33; McGregor and Worcester, Hand-List (1906), 69. 



Calayan (McGregor). Japan; Borneo in ^^inter. 



"Adult male {type of species). — General color above dull purplish 

 blue, with white bases to the feathers; wing-coverts and quills blackish 

 with a slight blue gloss; rump and upper tail-coverts pure white, with 

 narrow dusky shaft-lines; the long upper tail-coverts and tail-feathers 

 blackish with a faint blue gloss; tail very slightly forked; head like 

 the back ; lores and feathers below the eye black ; ear-coverts dull purplish 

 blue, as also the sides of neck and sides of upper breast, the latter 

 slightly mottled with white bases; fore part of cheeks and under surface 

 of body creamy buff, washed with smoky brown on the breast and flanks, 

 with a little purer white on the fore neck and abdomen ; under tail-coverts 

 smoky brown, broadly edged with whitisli, the long coverts blacker with 

 broad whitish edging; axillars and under wing-coverts dark brown, the 

 small coverts near edge of wing edged with pale smoky brown; quills 



• Some species of the swallow family are known to European authors as sand 

 martins, while other species are called house martins, but as, in the United States, 

 the name martin is closely associated with the genus Progne, I prefer to retain 

 the name swallow for all the species of Uirundinidoe known from the Philippine 

 Islands. 



