THE BIRDS OF NORTHERN THAILAND 157 



The beautiful emerald dove is well distributed in our provinces but 

 is virtually confined to moist evergreen forest or its immediate en- 

 virons. Where the jungle is suitable it is a common resident anywhere 

 from the plains to about 5,000 feet. 



This pigeon spends much of its time on the ground in the dense 

 cover along small streams and would seldom be noticed if it did not 

 make a practice of feeding in pairs or small flocks on the forest trails. 

 When startled, it rises with remarkable speed and either disappears 

 at once around a bend of the track or perches for a moment upon some 

 low branch and then vanishes into the undergrowth. 



In southeastern Thailand I took specimens with greatly enlarged 

 gonads April 29 and the species seems to breed with us at the same 

 season, since Gyldenstolpe collected a male juvenile at Khun Tan, 

 May 23, 1914. 



De Schauensee records that a male had the irides dark brown ; the 

 bill coral-red, deep crimson at the base; the feet and toes purplish 

 crimson, the tarsi livid white behind. Gyldenstolpe notes that his 

 immature specimen had the bill black. 



The adult male has the forehead and supercilia white; the crown 

 and nape blue-graj' ; the upper back deep vinaceous-red, mixed with 

 blue-gray; the middle back, scapulars, and most of the wing coverts 

 deep metallic green, more or less glossed with copper and bronze ; the 

 shoulder coverts blue-gray, tipped with white; the lower back dull 

 black, glossed with copper and crossed by two ashy-gray bars; the 

 upper tail coverts slaty gray, edged blackish ; the tail blackish ; the un- 

 derpays deep vinaceous-red, becoming paler and more grayish below 

 the breast; the under tail coverts slaty gray; the under wing coverts 

 rufous. The adult female has the forehead and supercilia gray; the 

 crown and nape violet -brown ; the upper back dull brown ; the upper 

 tail coverts deep brown, glossed with olive; some of the rectrices partly 

 rufous ; the underparts vinaceous-ruf ous, paler and more grayish below 

 the breast ; the other parts much as in the male. 



Order CUCULIFORMES 

 Family CUCULIDAE 



CLAMATOR COROMANDUS (Linnaeus) 



Red-winged Crested Cuckoo 



[Cuculns] coromandus Linnaeus, Systema naturae, ed. 12, vol. 1, 1766, p. 171 



(Coromandel). 

 Coccystes coromandus, Gyldenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, p. 233 



(listed) ; Kungl. Svenska Vet.-Akad. Handl., 1916, p. 101 (Khun Tan) ; Ibis, 



1920, p. 592 ("Northern Siam"). 



