Ornithologists' Club. 291 



Astur poliopsis (Hume), which has all the tail-feathers barred 

 except the middle ones. Iris bright orange. Feet yellow. 

 Length 11'7 inches, wing 6"7, tail 5*3, tarsus 1-9. 



Immature male. Whole of the upper parts dark chestnut, 

 darker on the nape, each feather having a dark centre. Tail 

 cinnamon-red, with two dark brown bars. Breast and sides 

 reddish brown, blotched with buff. Belly whitish buff, 

 blotched with rufous. Throat buff, with a thin median 

 streak of chestnut. Underside of wing cinnamon. Pri- 

 maries and secondaries indistinctly barred. Under wing- 

 coverts barred with rufous. Iris greyish white. Feet pale 

 lemon. Bill black, base bluish. Cere pale green. Eyelid 

 greenish (collector's ticket). 



Obs. "These Hawks, and two others said to be exactly like 

 them, were shot in September 1897 on the island of Car 

 ISIicobar, in the Bay of Bengal, by Mr. A. L. Butler, and are 

 named after Col. E. A. Butler, of Brettenham Park, Bury. 

 Mr. Butler writes that they are ' not uncommon in forest on 

 Car Nicobar, keeping almost exclusively to the tops of high 

 trees ; continually utters a shrill little double cry, exactly like 

 Astur budius. Young birds are extremely chestnut in colour. 

 The one I send had one or two filaments of nest-down still 

 hanging to it, proving this to be the first plumage acquired. 

 Young birds have a trick of fluttering on a bough like a 



broken-legged bird In September I noticed several 



rufous-crowned young birds probably bred in March or April, 

 and at the same time both adult cocks killed were in a state 

 of breeding.' 



" Dr. Sharpe concurs in thinking they are a species distinct 

 from Astur poliopsis and A. badius. In the whole of the 

 series at the Natural History Museum there was not one at 

 all approaching the bright chestnut Kestrel-like colour of 

 Astur butleri when immature." 



Mr. Ernst Hartert exhibited a new Humming-bird, 

 which he described as follows : — 



Chalcostigma purpureicauda, sp. n. 



S . Above deep green, with a metallic bluish gloss. Tail 



