THE BIRDS OF NORTHERN THAILAND 169 



The range of the present subspecies in northern Thailand embraces 

 all those districts not populated by longicaudatus. Eisenhofer, in 

 1912, took specimens at Ban Huai Horn, February 7 and 23, at Den 

 Chai, February 14 (all in Hannover), and at Huai Pu, May 28 (in 

 Stockholm). I have an example from Wiang Pa Pao and place 

 provisionally under this name a very young bird from Muang Fang. 



The Fang specimen, just out of the nest, is in postnatal molt; its 

 coloration is practically identical with that of the adult. A bird from 

 Doi Khrang, near Wiang Pa Pao, August 2, is in unworn juvenal 

 dress; it differs from the adult only in having the rectrices rather 

 narrower and more acuminate, the white tips smaller and less clearly 

 defined from the adjacent black portion. 



Specimens of this race are separable from examples of longicaudatus 

 (of comparable age and state of wear) by having the white tips of 

 the tail feathers of lesser size. 



The birds here called longicaudatus have the white tip of the second 

 outermost tail feather 23.9-28 mm. long and are, strictly speaking, 

 longicaudatus^ saliens / those here called saliens have the correspond- 

 ing tip 20.7-22.3 mm. long and are really saliens>longicaudatus. See 

 Mayr, Ibis, 1938, pp. 305-308. 



CENTROPUS SINENSIS INTERMEDIUS (Hume) 



Burmese Larger Coucal 



C [entrococcyx] intermedins Hume, Stray Feathers, vol. 1, 1873, p. 454 (Dhoon, 

 Dacca, and Thayetmyo ; type locality restricted to Thayetrnyo, Upper Pegu, 

 Burma, by Stresemann, Nov. Zool., vol. 20, 1913, p. 322). 



Centropns sinensis, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1913, p. 

 59 (Pak Pan). 



Centropus sinensis intermedins, Gyldenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, 

 p. 233 (listed) ; Kungl. Svenska Vet.-Akad. Handl., 1916, p. 103 (Khun Tan, 

 Doi Pha Sakaeng) ; Ibis, 1920, p. 594 ("Everywhere in suitable local- 

 ities"). — de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 1929, p. 571 

 (Chiang Mai, Chiang Rai) ; 1934, p. 258 (Chiang Mai). — Deignan, Journ. 

 Siam Soc. Nat. Hist. Supph, 1931, p. 160 (Chiang Mai) ; 1936, p. 89 (Chiang 

 Mai). 



The crow-pheasant, or noh Icon put, is one of the commonest low- 

 land birds throughout our area. Eisenhofer sent to Stockholm a 

 specimen from Pha Hing, May 1, 1912, and 19 undated examples 

 (including four juveniles) from Khun Tan. 



This large terrestrial cuckoo is a characteristic inhabitant of the 

 bamboo, the second-growth jungle with its tangles of Congea and 

 Eupatorium, and the brushy land around the ruins of old temples. 

 Its size, long tail, and inclination to seek escape by running rather 

 than by labored flight may cause it to be mistaken for a true pheasant. 

 The song is a hollow-sounding poot repeated many times and ren- 

 dered from the top of some bush or small tree, especially at evening. 



