Vol. XXIV, pp. 57-60 February 24, 1911 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 





NOTES ON SOME BIRDS FROM THE ISLAND OF 



GRENADA. 



BY T. BARBOUR. 



During part of August and September of the past summer, 

 Dr. Glover M. Allen and Mr. C. T. Brues visited Grenada for 

 the purpose of studying the fauna. Their collections are now 

 all in the Museum of Comparative Zoology. The ornithological 

 collection from Grenada already in the Museum was so complete 

 that no attempt was made to preserve series of the common 

 birds. Special efforts to secure some of the more interesting 

 forms were rewarded by the examples upon which these notes 

 are based. 



Hybris* nigrescens noctividus subsp. nov. 



Type, from St. George's, Grenada, No. 53,586, Museum of Comparative 

 Zoology, adult male. Collected by Glover M. Allen, September 15, 1910. 



Characters. — Size tbat of Aluco nigrescens (Lawrence) of Dominica, but 

 differing as follows: tarsus somewhat longer; under parts darker in 

 color, and much more heavily spotted with dusky; upper parts darker, 

 and more profusely marked with larger white spots than in the owl from 

 Dominica. 



Measurements. — Wing, 230 mm. ; tail, 100 mm. ; tarsus, 110 mm. ; cul- 

 men, 30 mm. 



Remarks. — Thanks to the courtesy of Dr. Charles W. Richmond we 

 have been enabled to compare the type of Lawrence's A. nigrescens, a 

 male from Dominica (U. S. X. M. No. 77,843), as well as another from 

 the same locality (U. S. N. M. No. 80,017), with an adult female also 

 from this island (Bang's Coll. M. C. Z. No. 13,614). These three birds 

 are all pale ochraceous below, somewhat mixed with whitish; while the 

 dusky spots are confined almost wholly to the belly. 



* Hybris is used instead of Tyto, which Matthews suggests (of. Matthews, Nor. 

 Zool., XVII, 1910, p. 500), because Tyto, the name for an owl, is preoccupied by 

 Tyta Billberg, the name for an owlet moth. The two names have the same 

 derivation from the Greek word tvtu}, meaning an owl. 



15— Peoc. Biol. Soc. Wash., Vol. XXIV, 1911. (.57) 



