Vol. XXXIV] Wurmore, Birds of Culebra Island, P. R. 61 
at a time and then remaining perfectly still. A times attracted by their 
explosive notes I watched for half an hour without catching sight of them. 
Twice I heard them singing a sweet warbling song. As on Vieques Island 
they were few in number. About twenty were heard during my stay. 
Birds were collected on April 15 and 20. The species was seen on Louis 
Pefia April 11 and Culebrita April 15. 
39. Margarops fuscatus fuscatus  (Vieillot). PEARLY-EYED 
THRASHER.— A common resident. These birds frequented dense brushy 
growth but were easily called into the open by “ squeaking.”’ They were 
found at times at the borders of mangrove swamps. One was seen on a low 
perch watching the fiddler crabs on the mud beneath it with great interest. 
Specimens were secured on April 6, 10, 15 and 19. 
40. Mimus polyglottos orpheus (Linnzus). JAmMAicAN MOockING- 
BIRD.— A fairly common resident. The mockingbird was less common 
on Culebra than on Vieques. They were found usually in the trees and 
bushes of upland pastures. At the time of my visit the birds were breed- 
ing and the males were singing constantly. Birds were collected on April 
6, 8, 17 and 20. 
41. Vireosylva calidris calidris (Linneus). JamaicAN VIREO.— 
This vireo was noted on Louis Pefia Island and Culebrita. None were 
seen on Culebra itself. One was taken on Louis Pena April 11. It is 
probably a rare summer visitant to the region under discussion. 
42. Setophaga ruticilla (Linneus). Repstart.— A winter visitant, 
fairly common at the time of my work on Culebra. The last Redstart 
noted was seen April 19. Though a few adult males were observed most 
of the birds recorded were females or males in immature plumage. Speci- 
mens were taken April 9 and 12. 
43. Seiurus noveboracensis noveboracensis (Gmelin). WaTER- 
Turusu.—A fairly common winter visitant. In April Water-Thrushes were 
migrating and their numbers varied from day to day. They were heard 
singing daily in the mangrove swamps. Specimens were collected April 6 
and 12. 
44. Seiurus noveboracensis notabilis Ridgway. GRINNELL’s WATER- 
Turusu.— One specimen of this form was collected April 12. The rela- 
tive abundance of the two subspecies of Seiwrus noveboracensis can be 
established only by further observations. 
45. Seiurus aurocapillus (Linneus). Ovensirp.— There is a speci- 
men of the Ovenbird in the U. 8. National Museum collected by A. B. Baker 
of the “ Fish Hawk” on February 11, 1899. This species was not observed 
by the writer and it is probable that it had departed northward before my 
arrival. 
46. Dendroica discolor (Vieillot). Prarrrz WarBLeR.— A winter 
visitant. The Prairie Warbler was noted April 6, 7,9 and 10. On the 
ninth there was a small wave of migrant warblers and several of this species 
were observed. One shot on the sixth was so fat that it could not be pre- 
served. Additional birds were taken April 9 and 10. 
