152 Mr. J. H. Gurnoy on some 



presumed females wliicli have come under my owq obser- 

 vation : — 



Tlie equally rare, but considerably larger^ Australian 

 Faleou^ G. suhniyra, so far as is known^ is subject to but 

 very little variation of plumage at different ages; but the tail 

 in tliis species also seems to alter with age^ being in the 

 first instance free from cross bars, and subsequently assuming 

 them. 



Tn a male contained in the Norwich Museum, and presu- 

 mably immature, all the rectrices are unbarred ; but Mr. E. 

 P. Ramsay describes an adult female as having " the tail 

 crossed with indistinct broken bars of very pale rufous and 

 tipped with buffy white " *. 



The oblong whitish spots which in some species occur on 

 both webs of the feathers of the under tail-coverts, are absent 

 in others ; these also are perhaps a mark of age, as, according 

 to Mr. Ramsay, they are present in the adult female above 

 referred to. 



XXXV. — On some Raptorial Birds recently acquired by the 

 Norwich Museum. By J. H. Gurney. 



The Norwich Museum has recently acquired some additional 

 specimens of Raptorial birds, as to which I am desirous of 

 recording a few observations. 



1. An adult female of Accipiter rhodogaster (Schleg.) 

 from Celebes, procured through Mr. Whitely. This spe- 

 cimen has the peculiarity, which I have not observed in 

 any other example of this species, of the rufous colouring of 

 the breast extending to the sides of the neck, there forming 

 a broad collar, which, in a much narrower and less perfect 

 form, also extends across the nape. 



* Vide Cat, of Australian Birds in Sydney Museum, p. 50. 



