706 MANUAL OP PHILIPPINE BIRDS. 



720. CHIBIA PALAWANENSIS (Tweeddale). 

 PALAWAN DRONGO. 



Dicrurus palawanensis TWEEDDALE, Proc. Zool. Soc. (1878), 614. 

 Chibia palawanensis SHABPE, Ibis (1888), 199; MCGREGOR and WORCKSTER, 

 Hand -List (1906), 107. 



Balabac (Everett) ; Calamianes (Bourns d Worcester, McGregor) ; Palawan 

 (Everett, Whitehead, Platen, Steere Exp., Bourns d 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, l\. 



"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 MF.} 



721. CHIBIA CUYENSIS McGregor. 

 CTJYO DEONGO. 



Chibia cuyensis MCGREGOR, Bull. Philippine Mus. (1903), 1, 5: MCGREGOR 

 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. 



