20 A FIRST LIST OF THE 



Dipterocarpus grandiflora, which cover nearly half the Thayetmyo 

 District, from the Irrawaddy to the summit of the Pegu Hills. 

 I did not observe it on the eastern slopes of these hills ; I 

 procured a specimen lately from the Arracan Hills however." 



The following are the dimensions of this species recorded in 

 the flesh by Mr. Oates :— 



Males: length, 10*5; expanse, 17; tail, from vent, 5*5; wing, 

 5*5; bill, straight from gape to point, 0*75; tarsus, 155; 

 length of cere, 0*1 8. 



Females: length, 10*7 to 10*9; expanse, 18 to 19; tail, 

 from vent, 5*8; wing, 5' 9 to 6; bill, straight from gape 

 to point, 0*75 to 0*77; tarsus, 1*5 to 1*6; length of cere, 

 0-18 to 0-2. 



The cere, gape, and both mandibles as far as the nostrils, 

 orange yellow; anterior portion of bill, bluish-black; eyelids 

 and orbital region, orange ; iris, hazel ; legs, orange ; claws, black. 



In both sexes, the mantle is dark bluish-ashy (darkest in the 

 female), and the rump and upper tail coverts pure white. 

 Central tail feathers black, with a few white spots, the remains 

 of three narrow transverse bars, which in younger birds are 

 more or less perfect ; laterals, white, broadly barred with black. 

 Quills, blackish brown, or black (the later secondaries and 

 tertiaries more or less tinged slaty), with a few small white 

 spots, most conspicuous on the primaries on the outer webs of 

 all but the first primary, and numerous broad white bars on the 

 inner webs. The chin, throat, and whole lower surface, includ- 

 ing wing lining, white ; some of the feathers of the throat with 

 narrow central brown shaft stripes, and those of the sides and 

 tipper abdomen with broad grey brown dashes. Forehead, lores, 

 and feathers round the eye, greyish white, with dark shafts; rest 

 of the top, back, and sides of the head, and upper back in the 

 male, pale slaty grey (each feather with a linear dark shaft- 

 stripe), with traces of an albescent nuchal half collar; in the 

 female, rich chestnut, extending in some specimens on to the 

 shoulder of the wing. 



In some females the middle back and scapulars are strongly 

 tinged with chestnut ; and in some young females, and even in 

 young males occasionally, the feathers of the breast are tinged 

 chestnut along the dark shaft stripes. 



Captain Feilden says {vide infra) that the female does not assume 

 the chestnut head till at least the second year ; but one young 

 male that he has sent me, everywhere browner and duller-colored 

 than the adult has the whole nape and sides of the neck strongly 

 tinged with rusty ferruginous, and the top of the head brown, 

 with here and there a rusty tinge. This looks very much as 

 if the young male assumed the female plumage before passing 

 to that of the old male. 



