706 MANUAL OF PHILIPPINE BIRDS. 
720. CHIBIA PALAWANENSIS (Tweeddale). 
PALAWAN DRONGO. 
Dicrirua ‘palassunonste yeni, Seats aeallesees ia aisy Sane 
Chibia palawanensis SHARPE, Ibis (1888), 199; McGrecor and WoRcESTER, 
Hand-List (1906), 107. 
Balabac (Everett); Calamianes (Bourns €& Worcester, McGregor); Palawan 
(Everett, Whitehead, Platen, Steere Exp., Bourns & Worcester, Celestino, White). 
Adult (sexes similar).—Above blue-black; feathers of crown with 
glossy scale-like tips, upper tail-coverts, wings, and tail glossy steel-green ; 
sides of neck with glossy green, lanceolate feathers; under parts black; 
feathers of lower throat and chest somewhat acute and with glossy scale- 
like tips; the outermost rectrices slightly upturned and twisted near 
the tip. A male from Palawan measures: Wing, 135; tail, 125; bill from 
nostril, 21; depth of bill at nostril, 10; tarsus, 23; difference in length 
between middle and outermost rectrices, 20. A female, wing, 132; tail, 
120; bill from nostril, 21.5; depth of bill at nostril, 10; tarsus, 24. 
“Habits like those of Dicrurus balicassius and D. striatus. Five males 
average: Length, 273; wing, 136; tail, 121; culmen, 33; tarsus, 23; 
middle toe with claw, 25. Five females, length, 267; wing, 133; tail, 
118; culmen, 33; tarsus, 23; middle toe with claw, 24. Iris dark brown 
to black; bill, legs, feet, and nails black.” (Bourns and Worcester MS.) 
721. CHIBIA CUYENSIS McGregor. 
CUYO DRONGO. 
Chibia cuyensis McGrecor, Bull. Philippine Mus. (1903), 1, 5; McGrrcor 
and WoRCESTER, Hand-List (1906), 107. 
Tam-bi-bi-li-gao, Cuyo. 
Cuyo (McGregor). 
Adult (sexes alike).—Wing, tail, and upper tail-coverts dark glossy 
green; all other parts dark blue-black; feathers of crown, nape, and 
breast tipped with glossy blue-black; some long hackles on sides of neck; 
back slightly metallic; outermost rectrices slightly upturned and twisted 
near the tip. A male (type) measures: Length, 305; wing, 152; tail, 
130; bill from nostril, 23; depth of bill at nostril, 12; tarsus, 28; dif- 
ference in length between the middle and outermost rectrices, 9. A 
female, wing, 145; tail, 124; bill from nostril, 11.5; tarsus, 27. 
This species differs from C. palawanensis in being larger and in having 
the bill longer and deeper; spangles on chest larger. 
