204 MANUAL OF PHILIPPINE BIRDS. 
Genus SULA Brisson, 1760. 
Characters same as those civertior the Family. 
Species. 
a’. Upper parts, head, and neck mostly pure white (adult) ~....... piscator (p. 204) 
a?, Upper parts uniform deep sooty brown. 
6+, Breast and belly pure white (adult) _../ 2-22.22. leucogastra (p. 205) 
b*. Breast and belly light brown (immature). 
c'. Outer webs of flight feathers washed with hoary gray.......- piscator (p. 204) 
c?. Outer webs of flight feathers dark brown................------ leucogastra (p. 205) 
168. SULA PISCATOR (Linneus). 
RED-LEGGED BOOBY, 
Pelecanus piscator LINNXUS, Syst. Nat. ed. 10 (1758), 1, 134. 
Sula piscator GRANT, Cat. Birds Brit. Mus. (1898), 26, 432; McGregor and 
Worcester, Hand-List (1906), 39. 
Sula piscatria SHARPE, Hand-List (1899), 1, 237; OaTEs, Cat. Birds’ Eggs 
(1902), 2, 210. 
Mindanao (Steere Hap.). Oceania, southern Atlantic, Indian and Australian 
seas. 
“A dult.—General color pure white; primaries, primary-coverts, outer 
webs and tips of secondaries, and secondary-coverts hoary gray, inclining 
to blackish on outermost quills in freshly molted birds, and to blackish 
in worn specimens; chin and upper part of throat naked, the feathers 
ending in a straight line across throat; tail composed of fourteen, or 
sometimes sixteen feathers. Iris gray; bill grayish blue, shading into 
pink or reddish toward the base; naked skin round eye blue; gular pouch 
dark slate or black; legs and feet vermilion, red or dark pink, almost 
magenta, 
“Adult male——Length, about 750; culmen from feathers on forehead, 
89; wing, 394; tail, 10 to 28; tarsus, 35. 
“Adult female —Length, about 710; culmen from feathers on forehead, 
81 to 88; wing, 373 to 375; tail, 208 to 210; tarsus, 35. 
“Immature in first plumage.—Entire plumage above and below brown, 
hghter on breast and belly; primaries and secondaries and their coverts 
like those of the adult, but the inner webs of the secondaries black. 
Cutting edges of the mandible sometimes serrated, and the inner margin 
of the middle claw pectinate. Bill bluish pink, the latter predominating 
toward the base; naked skin round eye dark leaden hue; gular pouch 
flesh-colored. ; 
“More adult specimens (perhaps in the plumage of the second year) 
head, neck, and under parts white; back, wings, and tail brown as in the 
immature; middle tail-feathers dark, brownish gray toward the base, 
shading into white toward the extremity. 
or! 
