286 BULLETIN" 15 3, UNITED STATES NATIONAL MUSEUM 



and the agreement of these two authors is indicative of the correct- 

 ness of their conclusions. It should be noted, however, that some 

 dissension as to the races of this bird does exist. Sassi ^^ records 

 Grauer's specimens from Moera and Mawambi, eastern Belgian 

 Congo as auhryanus while both Neumann and Sclater restrict the 

 range of aubryanus to "West Africa from Cameroon to Gaboon and 

 include the eastern Congo in that of typical gulielnii. However, of 

 the four examples collected by Grauer only one is large enough to 

 be referred to aubryanus and the other three are nearer to gulielmi. 

 Inasmuch as both forms are conspecific, there is nothing surprising 

 in that one race may occasionally produce an individual large 

 enough to match specimens of another subspecies. These birds seem 

 better considered as gulielmi, but it should be kept in mind that 

 the two races are not always too well defined, and may meet in the 

 eastern Congo. 



Young birds in juvenal i^lumage lack the red on the forehead, 

 wings, and tibiae, but aside from this point on which there seems to 

 be general agreement, no two descriptions tally. Van Someren ^- 

 writes that young birds are bright green like adult females, but 

 have dark, horny, grayish brown bills. Granvik^^ notes that the 

 young bird has — 



" * * * the crown and neck purely green, without any mixture of either 

 brown or cobalt blue, found in the old birds. Further, the lower wing coverts 

 are not uniform green as in old birds but are furnished with a prominent gold- 

 yellow border. Then again the feathers of tlie tail, both on the upper and lower 

 surface, are brownish red at the tips, inside these, greenish brown and then the 

 same color as in the old birds." 



I have examined but one young bird, a juvenal female from 

 Cameroon {auhryanus) , but from the condition of this specimen and 

 the data afforded by Van Someren and Granvik and others, it 

 appears that it takes about three years for the bird to acquire full 

 adult feathering. This young bird is in an early stage of the post- 

 juvenal molt and thereby shows, in part at least, two plumages. 

 The juvenal plumage differs from subsequent ones in that the fore- 

 head is dusky fuscous brown, the extent of this color being rather 

 narrow ; the rest of the top of the head to the nape and the auriculars 

 are buffy brown, the feathers narrowly tipped with greenish; the 

 wing coverts and interscapulars, Prout's brown narrowly edged with 

 grape green; remiges and the rectrices as in adults but slightly 

 ligliter and more pointed terminally; underparts slightly greener, 

 less bluish than in adults. 



"Ann. K. K. Naturhist. Hofmus. Wlcn, vol. 26, 1912, p. 363. 



^ Nov. Zool., vol. 29, 1922, p. 46. 



'^ .lourn. f. Ornith., 1923, Sondcrbeft, pp. 72-73. 



