WHITE-COLLARED FLYCATCHER. 177 



of the plumage which follows the spring moult, and 

 which Temminck at one time considered and described 

 as a second moult. 



In albicollis the white collar surrounds all the upper 

 part of the neck, while in atricapilla the whole of the 

 upper part of the neck at this time is black. During 

 the moult the collar of albicollis is marked out by a 

 grey ashy shade. The males of atricapilla in the winter 

 plumage have no white spot on the quill feathers. In 

 albicollis the two external quill feathers of the tail 

 have a white edge, more or less wide according to age; 

 in atricapilla there are three lateral quill feathers so 

 marked. According also to Roux, the first quill feather 

 of the wing is not longer and often shorter than the 

 fourth in atricapilla, whilst it is always longer in albi- 

 collis. In all other external marks the males in winter 

 plumage, the females of both species, and the young 

 birds, may very easily be mistaken for each other. 



But the habits, the call note, and the song of the 

 males, are very different and distinctive, as well as the 

 colour of the eggs. The call of albicollis is a sharp 

 disagreeable whistle, while that of atricapilla is an 

 agreeable sonorous note. 



The White-collared Flycatcher builds its nest in the 

 holes of trees, of moss and hair. It lays five or six 

 eggs of a pale greenish blue, and generally very slightly 

 deeper in colour or streaked at the larger end. Large 

 diameter nine lines, small diameter six lines. — Degland. 



It frequents wild and vast forests, where it may be 

 found perched upon the summit of the trees, only 

 coming down when its prey, the insects, are driven 

 lower by the rain. It is only seen in the smaller 

 woods in autumn. The plumage differs much in the 

 sexes, and at different seasons. 



