248 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



portions of the trees and that, when alarmed, it would freeze against 

 a branch and remain motionless for a long period; this habit may 

 account for the paucity of records. 



Birds of this genus have a patch of bristly feathers in the middle 

 of the back smeared with a sweet-smelling, sticky glandular secretion 

 which, in the dried skin, loses both its odor and viscidity. The pur- 

 pose of this substance is still unknown, but it is, I feel sure, the origin 

 of the buffy or greenish-yellow color with which the plumage is usually 

 suffused and which, when the specimen is newly killed, can be washed 

 off on damp cotton, as I discovered in cleaning bloodstains from the 

 feathers. 



De Schauensee records that his examples had the irides yellowish 

 white (male) or sandy brown (female) ; the bill black; the feet and 

 toes greenish black. Gyldenstolpe's birds of either sex had the irides 

 dark brown. 



This is a small species with tail so short as not to extend beyond 

 the wings. The male has the upper half of the head and the crest 

 black, the front and forecrown minutely speckled with whitish; the 

 upper back white; the scapulars and the middle of the back black; 

 the rump white; the upper tail coverts and the tail black; the pri- 

 maries, outer secondaries, and outer wing coverts black ; the shoulder 

 white ; the inner coverts and inner secondaries white with conspicuous 

 cordif orm black bars at or near the tip ; the chin, throat, and sides of 

 the neck white ; the under wing coverts white ; the remaining under- 

 pays blackish, deepening toward the under tail coverts. The female 

 differs only in having the front and crown white. 



N. B. — I have given descriptions of ideal specimens; the fact is 

 that the plumage (except the most recently grown feathers in molt- 

 ing birds) is always more or less strongly stained, the white portions 

 becoming buffy, the black (especially on the breast), olivaceous. 



DINOPIUM JAVANENSE INTERMEDIUM (Blyth) 



Burmese Three-toed Golden-backed Woodpecker 



P[icus] (T[iga]) intermedins Blyth, Journ. Asiat. Soc. Bengal, vol. 14, 1845, p. 

 193 (Nepal, error; "Blyth's type was from north Arrakan," fide Stuart 

 Baker, Ibis, 1919, p. 208 ; type locality restricted to Ramree Island, by Rob- 

 inson and Boden Kloss, Journ. Nat. Hist. Soc. Siam, vol. 5, 1923, p. 187). 



Tiga javanensis, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1913, p. 49 

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



Tiga javanensis intermedia, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 

 1916, p. 95 (Pak Mae Ta, Pha Kho, Khun Tan, Tha Chomphu) ; Ibis, 1920, 

 p. 604 ("Throughout the whole of Siam proper"). 



Dinopium javanense intermedium, de Schauensee, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1929, p. 567 (Chiang Saen ) .— Deignan, Journ. Siam Soc. Nat. Hist. 

 Suppl., 1931, p. 157 (Chiang Mai, Doi Suthep) ; 1936, p. 97 (Chiang Mai, 

 Doi Suthep).— Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 233 ("Doi Phra 



