THE BIRDS OF NORTHERN THAILAND 249 



Chao" [=Doi Saket ?], Doi Ang Ka, Chora Thong, Mae Hong Son, Thatta- 

 fang, Ban Nam Khian). 

 Dinopium javanensis intermedia, de Schauensee, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1934, p. 253 ("Tung Sio"). 



The three-toed golden-backed woodpecker is a fairly common 

 species of the dry, deciduous forests, from the plains to about 2,000 

 feet. It has been recorded from all parts of our area. 



I found this form, usually in pairs, in open woodlands, feeding 

 upon ants low down on the trunks of trees or on stumps. Its presence 

 is soon made known by its loud, shrill, nasal cries but it is quick to 

 take alarm and, in my experience, difficult to observe. 



A subadult male was collected at Muang Fang, July 23, and adults 

 in molt at various localities between August 2 and November 9. 



De Schauensee records that a male had the irides chestnut; the 

 maxilla black ; the mandible black, with the basal half slaty blue ; the 

 feet and toes pale slaty blue. I have noted that a female had the 

 irides brown; the orbital skin slate; the maxilla dull black, 

 plumbeous-blue at the corners of the mouth ; the mandible slate, with 

 the basal half plumbeous-blue; the feet and toes dull olive-green; 

 the claws dark slate. 



The adult male has the crown and long nuchal crest crimson; the 

 uppermost back black ; the upper back, scapulars, wing coverts, and 

 outer webs of the secondaries golden -yellow, suffused with olive and 

 sometimes more or less washed with crimson ; the lower back and rump 

 crimson; the upper tail coverts and the tail black; the primaries 

 black with large white spots on the inner web ; the sides of the head 

 and neck and the entire underparts fulvous- white, with a broad black 

 streak from behind the eye, a broad black streak at either side of the 

 throat and neck from the base of the mandible, and a broken narrow 

 black streak down the center of the throat and f oreneck ; the feathers 

 of the remaining underparts edged with black, most broadly on the 

 breast, to give a scaly appearance. The adult female differs in hav- 

 ing the crown and crest black, each feather with a white guttate 

 streak near the tip. 



For distinctions between the two golden-backed woodpeckers of 

 our provinces, see under the following form. 



CHRYSOCOLAPTES LUCIDUS GUTTACRISTATUS (Tickell) 



Burmese Four-toed Golden-backed Woodpecker 



Picus Outtacristatus Tickell, Journ. Asiat. Soc. Bengal, vol. 2, 1833, pp. 578- 



579 (Borabham and Dholbham). 

 Chrysocolaptes guttacristatns indo-malayicus, Gyldenstolpe, Kungl, Svenska 



Vet.-Akad. Handl., 1913, p. 49, (Pak Pan, Ban Huai Horn, Den Chai) ; 



Journ. Nat. Hist. Soc. Siam, 1915, p. 230 (listed). 

 Chrysocolaptes guttacristatns guttacristatns, Gyldenstolpe, Kungl. Svenska 



Vet.-Akad. Handl., 1916, p. 95 (Pha Kho, Khun Tan) ; Ibis, 1920, p. 605 



