PTILOCOLPA. ■ 47 



Young. — Immature birds have the fore breast chestnut, uniform with 

 the abdomen, thus not resembling the adult plumage of either sex; wings 

 rich metallic green, or copper-red, without canescence and the primaries 

 neither scooped nor cut as are those of the adult. 



The plumage of the male and female in the gray-breasted fruit pigeon 

 is so different that the sexes were long considered to represent distinct 

 species. Grant, working on the material gathered by Whitehead, has 

 shown that these differences are sexual and not specific and more recently 

 collected material sustains his conclusions. 



In habits these birds are quite similar to the slightly larger imperial 

 pigeons or bahich. They feed on large seeds or nuts and are often found 

 in considerable numbers in fruiting trees. 



38. PTILOCOLPA NIGRORUM Whitehead. 



BLACK-BREASTED FRUIT PIGEON, 



Ptilocolpa nigrorum Whitehead, Bull. Brit. Orn. Club. (1897), 6, 34; Ibis 

 (1899), 490; McC4regor and Worcester. Hand-List (1906), 12. 



Xegros ( ir/i itehead ) . 



Adult male. — Similar to P. caroJa but band on fore breast black not 

 ash-gray. Total length, 330; wing, 211; tail, 122: tarsus, 22.* "Base 

 of bill coral-pink, tipped with dull white; iris pale straw-yellow; feet 

 coral-pink."' ( \Mi itehead.) 



Adult female. — Said to be similar to the female of griseipectus. 



This species is known from "\Miitehead's specimens only, taken "when 

 camped just below the bare cone of Canloou." 



39. PTILOCOLPA M I NDANENSIS Grant. 



MINDANAO FRUIT PIGEON. 



Ptilocolpa mimlancnsis Grant, Bull. Brit. Orn. Club. (1905), 16, 16; Ibis 

 (1906), 503. 



Mindanao {Goodfelloiv, Celestino) . 



Adult male. — "Very similar to the male of P. nigrorum "Whitehead, 

 but with the chin, throat, and upper part of the chest nearly pure white, 

 instead of gray, and the breast deep grayish black. 'Iris creamy white; 

 eyelids pale gray; bill scarlet at base, pinkish white toward the tip: 

 feet dull purple.' (Goodfelloiv.) Lengtli, about 330; wing, 205; tail, 

 ni." (Grant.) 



Collected on Mount Apo, Mindanao, at 2,440 meters. 



* Whitehead's diagnosis is as follows: "Similis P. griseipectori (Bp.), sed plaga 

 priepectorali nigra, nee cinerea, facile distinguenda. Long. tot. 13.0 poll., aho 



S.3. cauda' 4.S. tarsi 0.85." 



