702 MANUAL OF PHILIPPINE BIRDS. 
mm: on outermost pair and reduced to a mere trace on the middle pair ; 
shafts of rectrices black above, brown below. A male measures: Wing, 
111; tail, 75; culmen from basggg23 ; bill from nostril, 16; tarsus, 20. 
Female.—Head, neck, sides neck and ear-coverts black, streaked 
with olive-green; back yellow, but not so bright as in the male; jaw, 
chin, throat, and chest cinereous with whitish streaks; breast and abdomen 
like the male, but less heavily streaked with black; primaries more 
widely edged with pale gray than in the male; secondaries and tertials 
broadly edged with olive-green; primary-coverts and alula edged with 
gray; exposed edges of all the secondary-coverts olive-green; rectrices 
heavily washed with olive-green on outer webs; both webs of central ‘pair 
nearly all olive-green; shafts yellow below. A female measures: Wing, 
109; tail, 76; culmen from base, 23; bill from nostril, 16.5; tarsus, 21. 
“Hight males average: Length, 197; wing, 114; tail, 77; culmen, 25; 
tarsus, 20.5; middle toe with claw, 22.3. Five females, length, 192; 
wing, 106; tail, 73; culmen, 23; tarsus, 20.5; middle toe with claw, 21.5. 
Iris deep red; legs and feet slaty blue, nails blackish ; bill light reddish 
brown.” (Bourns and Worcester MS.) 
Family DICRURIDZ. 
Bill strong, culmen ridged and strongly curved; cutting edge curved 
with a notch near the tip; nostrils hidden by many soft, antrorse, frontal 
plumes, the anterior of which have long bristle-lke shafts; rictal bristles 
long and stiff; wing long; first primary more than one-half the second, 
the latter much less than third; fourth and fifth practically equal and 
longest; tail long to very long, slightly to deeply forked; rectrices ten, 
the two outer pairs curved outward near the tips. Legs and feet stout: 
tarsus slightly longer than bill from nostril; bill, legs, and nails black 
in all the species. 
Genera. 
a*, Plumage mostly, or entirely, black; upper parts glossed with green or blue. 
b'. Tips of outermost rectrices not curved upward; tail nearly square. 
Dicrurus (p. 702) 
b?. Tips of outermost rectrices curved upward, the webs more or less rotated 
about the shaft; tail decidedly forked....-............--.--..--.-<-0:--- Chibia (p. 705) 
a’, Plumage almost entirely gray and cinereous, with neither blue nor green gloss; 
tail deeply forked 1) 030 oo fh. Ne ed oe aaah aes Bhuchanga (p. 708) 
Genus DICRURUS Vieillot, 1816. 
Wing much longer than tail; tail slightly forked; rectrices broad, the 
outermost with very little if any upward curve at tip. Plumage mostly, 
or entirely, black, glossed with blue or green. 
