21 Dr. P. L. Sclater on Falco circumcinctus. 



" Harpagus circumcinctus. 



" Diag. — Size of the Kestrel, with white stripe over the eye, 

 which encircles the whole head, and is connected with a white 

 collar ; the tail-coverts, above and beneath, white. 



" Descr. — Rufous ash-grey, beneath lighter, with dark-brown 

 shaft-stripes; the white stripe over the eye and the collar 

 black-margined; tibia-coverts white; the arm- and band- wings 

 white at tlie roots, and, like the stronger covert-feathers, with white 

 spots and bands on the inner and outer webs ; the first wing- 

 feather without spots on the exterior web, and with fine white 

 spots on the interior web ; tail black-brown, beneath with white 

 roots, and three small white bands and an end-band ; the fifth 

 without spots on the exterior web ; the fourth with only traces ; 

 the third exhibits round white spots; and the two exterior feathers 

 are white-banded. From this very irregular distribution of 

 spots, the tail, seen from above, exhibits a very irregular drawing. 

 Cere, naked eye-region, and feet yellow; nails dark brown. 



" I apprehend that this specimen — the only one in England — 

 is not a very old bird. Lord Derby received it from Chili, where 

 it was obtained by Mr. Bridges. 



'' Dimensions (in French centimetres). — Head, 49; bill, from 

 the cere, 16; from the gape, 22. Height, 13; breadth, 20; 

 over wing, 123; tip of the wing, 56; middle tail-feather, 148; 

 outer tail-feather, 115; tarsus, 45; middle toe, 26; nail, 11; 

 outer toe, \7\ ; nail, 10; inner toe, 16; nail, 12; after toe, 13; 

 nail, 13." 



The accompanying illustration (Plate II.) is a reduction from 

 an accurate water-colour drawing of this bird, made by Mr. Wolf 

 for Mr. J. H. Gurney's portfolio. Through the kindness of Mr. 

 Thomas J. Moore, the present curator of the Derbian Museum 

 at Liverpool, the typical specimen was, by permission of the 

 trustees of that collection, transmitted to London for the purpose 

 of being figured; and I have thus had an opportunity of examining 

 it carefully. It is, I think, certainly distinct from any previously 

 described species of the group; but, as has been already men- 

 tioned in these pages*, is probably identical with Prof. Bur- 

 mcister's Falco punctipennis, described in the * Journal fiir Oriii- 



* See 'Ibis,' ISfil, p. 20n. 



