570 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 42. 



From Butorides virescens maculatus it may be distinguished by 

 decidedly shorter wing and tail, darker, somewhat more rufescent 

 neck and sides of head. Compared with Butorides virescens domini- 

 canus, it hag decidedly darker posterior lower parts, usually darker 

 and rather more rufescent (less purplish) neck and sides of head, and 

 in the male, at least, somewhat shorter tail. It is slightly smaller, in 

 the male, than Butorides virescens cliristopliorensis, but has a stouter 

 bill; the neck and sides of head are much darker, very much less 

 fulvescent (much more purplish); and the hind parts below are 

 darker. It may easily be separated from Butorides virescens harha- 

 densis by larger size throughout, at least in the male; darker, less 

 fulvescent neck and sides of head, and darker gray posterior lower 

 parts. It may be distinguished readily from Butorides virescens 

 hahamensis by its larger size throughout (at least in the male), much 

 darker, less fulvescent (more purplish) neck and sides of head, and 

 darker posterior under surface. The juvenal plumage is apparently 

 indistinguishable from that of Butorides virescens cubanus. 



Specimens from the islands of Bequia and Carriacou are seemingly 

 identical with the Grenada bird, in both size and color. A single 

 female from St. Vincent, while of the same coloration, is very much 

 smaller than the males from Grenada and Bequia, but apparently 

 belongs with them. This subspecies thus ranges over the islands 

 from Grenada north to St. Vincent, and is resident here throughout 

 the year. In addition to the above localities of specimens, there is 

 record of its occurrence on Mustique Island, and it probably lives in 

 all suitable places throughout the Grenadines. 



Seven specimens have been examined, from the following West 

 Indian localities, the breeding records being noted by an asterisk: 



Bequia Island. — Spring Estate. 



Carriacou Island. — Harvey Vale. 



Grenada Island. — St, George.* 



St. Vincent Island. — Rutland Vale, 



Measurements of specimens of Butorides virescens grenadensis. 



Museum and number. 



E. A.and O. Bangs, 132121.. 



U.S.N.M., 74147 1 



E. A. and O. Bangs, 12896'.. 

 E. A. and O. Bangs, 12897'.. 

 U.S.N.M., 74034' 



Sex. 



Males... 

 ..do. s.. 

 ...do. < .. 

 [Male]*.. 

 Female^ 



Middle 

 toe. 



mm. 

 43.8 

 46.0 

 44.0 

 45.0 

 40.0 



• Used in measurement averages on p. 569. 



2 Collected by A. U. Clark, at St. George, Grenada Island. 



3 Type, collected by F. A. Ober, on Grenada Island. 



* Collected by A. H. Clark, at Spring Estate, Bequia Island. 



6 Collected by F. A. Ober, at Rutland Vale, St. Vincent Island. 



