A Manual of Philippine Birds

by Richard C. McGregor

Genus ASTUR Lacépède, 1799.

Bill small and compressed, upper mandible with a deep notch or a strong sinuation near its tip; first primary short, third or fourth longest; tarsus rather long and with transverse plates in front and behind but the division lines between plates very obscure.

Species.

• a¹. Larger, length more than 330 mm.; under parts white, barred with brown or pale rufous. trivirgatus (p. [216])
• a². Smaller; length less than 330 mm.; under parts not barred.
  • b¹. Breast light chestnut. soloensis (p. [217])
  • b². Breast light gray. cuculoides (p. [218])

176. ASTUR TRIVIRGATUS (Temminck).

CRESTED GOSHAWK.

• Falco trivirgatus Temminck, Pl. Col. (1824), 1, pl. 303.
• Astur trivirgatus Sharpe, Cat. Birds Brit. Mus. (1874), 1, 105; Hand-List (1899), 1, 249; Oates, Cat. Birds’ Eggs (1902), 2, 243; McGregor and Worcester, Hand-List (1906), 41.

Balabac (Everett); Leyte (Everett); Mindanao (Everett, Steere Exp., Platen, Bourns & Worcester, Celestino, Goodfellow); Palawan (Whitehead, Platen); Samar (Bourns & Worcester, Whitehead). Indian Peninsula, Indo-Malayan Islands, Ceylon, Formosa.

“Adult male.—Above slaty gray, the upper tail-coverts blackish and tipped with white; head and neck clearer slaty gray, including a conspicuous occipital crest, the sides of the neck somewhat tinged with rufous; quills browner than the back, primaries with rufescent shafts, barred above with dark brown, much plainer underneath, where the quills are white at the base of the inner web; tail ashy brown, paler at tip, crossed with four bands of dark brown; throat white, with a distinct black moustachial streak on each side and a broad median line; chest clear tawny-rufous; rest of under surface white, broadly banded with pale rufous, each bar of this color having a conterminous brown bar, the thighs thickly barred with ashy brown without any rufous tinge; under tail-coverts white; under wing-coverts white, spotted with brown or rufous-brown, and the axillars similarly barred. Cere orange-yellow; bill black, lead-color at base; cheeks and orbits orange; feet yellow; iris orange-yellow. Length, 356; culmen, 27; wing, 198; tail, 160; tarsus, 56.

“Adult female.—Similar to the adult male, but much larger. Length, 457; wing, 246; tarsus, 68.