424 MANUAL OF PHILIPPINE BIRDS. 
Family HIRUNDINIDZ. 
Bill weak, short, flat, and broa e edges smooth; a small notch near 
end of upper mandible; culmen 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. 
b'. Upper parts dull earthy brown with no gloss; tail but slightly forked. 
Riparia (p. 425) 
b*. Upper parts glossed with green or steel-blue; tail deeply forked, and some- 
Limes: -verys Tor oy oe eae a ee See eae e cae ee ene ya eee eae Hirundo (p. 426) 
Genus CHELIDONARIA Reichenow, 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 BONAPARTE, Consp. Gen. Avium (1850), 1, 343; SiARPE, 
Cat. Birds Brit. Mus. (1885), 10, 91. 
Chelidonaria dasypus SHARPE, Hand-List (1901), 3, 188; OarEs and RE, 
Cat. Birds’ Eggs (1903), 3, 230; McGrecor, Bull. Philippine Mus. 
(1904), 4, 833; McGrecor and WorcEsSTER, Hand-List (1906), 69. 
Calayan (McGregor). Japan; Borneo in winter. 
“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 whitish, 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 Hiruwndinidew known from the Philippine 
Islands. 
