THE RON. 25 



Genus TRERON" Vieillot, 1816. 



This genus differs from the other green pigeons in having the horny 

 portion of culmen extending back to frontal feathers ; a small naked area 

 around eye; pattern and colors of the plumage very similar to those of 

 Osmotreron axillaris. 



11. TRERON NIPALENSIS (Hodgson). 

 THICK-BILLED GREEN PIGEON. 



Toria nipalensis HODGSON, As. Research (1836), 19, 164, pi. 9. 



Treron nipalensis SALVADORI, Cat. Birds Brit. Mus. (1893), 21, 34; SHARPE, 

 Hand-List (1899), 1, 53; GATES, Cat. Birds' Eggs (1901), 1, 82; MC- 

 GREGOR and WORCESTER, Hand-List (1906), 9. 



Treron nasica STEERE, List Birds and Mams. Steere Exp. (1890), 24. 



Mindoro (Steere Exp., Bourns & Worcester) ; Palawan (Steere, Everett, White- 

 head, Platen, Steere Exp., Bourns & Worcester, Celestino, White ) . Nepal to 

 Burma, Malay Peninsula, Siam, Cochin China, Tenasserim, Borneo. 



Adult male. Crown ashy, forehead lighter; face and neck dark gray, 

 the latter followed by a narrow line of ashy gray; mantle, including 

 lesser wing-coverts, dark chestnut; lower back, rump, and tail-coverts 

 dark green; under parts yellowish green, breast more yellowish; thighs 

 and flanks darker and greener, mixed with white; under tail-coverts 

 cinnamon ; wings black ; median and greater wing-coverts and secondaries 

 edged with yellow; some of the inner secondaries tipped with green; tail 

 above, ashy gray with a black band some distance from the tip, but the 

 median rectrices green and the next two partly green. "Legs and feet 

 vary from lake-pink to coral-red; orbital skin pea-green; the irides vary 

 from bright orange to yellowish red, with an inner, deep-blue ring more 

 or less apparent ; gape and base of upper mandible to nostril bright red ; 

 rest of bill pale yellowish, or greenish white, tipped with greenish." 

 (Hume.) Two males from Palawan measure: Length, 250, 260; wing, 

 132, 136; tail, 89, 87; culmen from base, 20, 21; tarsus, 19.8, 20. 



Adult female. Differs from the male in having the mantle dark green 

 like lower back; under tail-coverts buffy white with large pointed shaft- 

 marks of dark green. A female from Palawan measures: Length, 250; 

 wing, 130; tail, 84; culmen from base, 20; tarsus, 20. 



"Two females measure: Length, 210; culmen, 20; wing, 130; tail, 74; 

 tarsus, 20; middle toe with claw, 29. Iris with outer orange and inner 

 brown ring; bill yellow, red at base of lower mandible." (Bourns and 

 Worcester MS.) 



GFTHS. 



UNIVERSITY 



OF 



\V&* 



