COLUMBA. 5 1 



Family COIUMBID^. 



Tarsus slender, feathered at base; bill slender, gape small, and nostril 

 covering conspicuously swollen; tail nearly square or greatly graduated; 

 colors blackish or reddish brown. 



SithfamiUes. 



a^. Tail moderate, nearly square; plumage mostly blackish with purple and green 

 metallic reflections Columbinse (p. 51) 



a'. Tail greatly elongated and graduated; plumage mostly chestnut or rufous- 

 brown with little metallic color Macropyglnae (p. 52) 



Subfamily COLUMBIN.^. 



Genus COLUMBA Linnaeus, 1758. 



Bill comparatively slender; membrane behind nostril greatly swollen 

 and bulging out on the side ; first primary very slightly scooped on inner 

 web ; tarsus feathered at the base. The only Philippine species is almost 

 entirely black, glossed with green and juirple. 



43. COLUMBA GRISEOGULARIS ( Walden and Layard). 

 GRAY-THROATED PIGEON. 



lanthanas (/riseogularis Waldex and L.\.yard. Ibis (1872), 104, pi. 6. 



Columba griseigularis Salvadori, Cat. Birds Brit. Mus. (1893), 21, 313; 

 Shaepe, Hand-List (1899), 1, 72; McGregor and Worcester. Hand- 

 List (1906), 13. 



Bd-liid mai-tim, Manila; hd-diic, Batan. 



Basilan {Everett, Bourns d ^Vorcester) ; Batan {McGregor) ; Cagayan Sulu 

 {McGregor) ; Calayan {McGi'egor) ; Guimaras {Layard, Meyer) ; Lubang 

 {McGregor) ; Luzon {Gevers, Whitehead) ; Mindanao {Steere Exp., Platen, Good- 

 fellow) ; Mindoro {McGregor) ; Xegros {Everett, Whitehead) ; Romblon {Mc- 

 Gregor) ; Sibutu {Everett); Sibuyan {McGregor) ; Sulu {Burbidge) -. West Bolod 

 {M earns). Northern Borneo. 



Adult {sexes alike). — General color slate-black with metallic purple 

 or green tips to the feathers ; chin, upper throat, and sides of face below 

 eyes pale gray; head, neck, back, breast, abdomen, and tips of wing- 

 coverts, and upper and under tail-coverts glossed with metallic purple 

 changing to green; remiges and rectrices black without metallic reflec- 

 tions, their coverts largely black with only the tips metiillic; colors 

 change greatly with the angle at which the specimen is held. Iris 

 bright yellow ; base of bill dark red, tip light yellow : feet and bare space 

 about eye red. Length, 380 to 430: two males, wing. 248: tail, KJl: 

 exposed culmcn, 22 ; tarsus, 28. 



Young. — Differs from the adull in liaving iiietallic edges of feathers 

 narrower on body, and wanting on wing-coverts : throat and breast 

 blackish brown, each feather tipped with cinnamon. 



