[42] 



and autumn migrant. Not uncommon at Cobb's Island. Not 

 infrequently seen during the migrations near Washington, being 

 comparatively common in August and September. 



13. Gelochelidon nilotica. — Marsh Tern ; Gull-billed 

 Tern. — Summer resident on the coast. Common at Cobb's 

 Island and breeds, formerly in great abundance, commencing to 

 lay its eggs about the 26th of June. I have been informed that 

 great numbers of the eggs have formerly been taken from the 

 north end of Hog Island, adjoining Cobb's. It has been occa- 

 sionally seen during the late summer and early fall months near 

 Washington. 



14. Sterna tschegrava. Caspian Tern. — Not common 

 on the coast in summer. Messrs. Henshaw and Ridgway found 

 it breeding at Cobb's Island in July, 1879 (Bull Nuttall Club, 

 Vol. V, p. 221). Captain C. H. Crumb has also taken three 

 sets of eggs in the month of July. 



15. Sterna maxima. Royal Tern; Gannet ; Gannet 

 Striker. — Not imcommon on the coast in summer. In July, 

 1880, Mr. Ridgway found a colony of several thousands of this 

 species breeding on Cobb's Island. Captain Crumb has found 

 eggs in the latter part of June. 



16. Sterna forsteri. Forster's Tern. — Not uncommon 

 summer resident of the Coast region. Found breeding in the 

 vicinity of Cobb's Island, by Mr. William Brewster, in July, 

 1880, in moderate numbers (Bull Nuttal Club, Vol. VII, p. 126). 

 Captain Crumb reports that it now breeds very sparinglv there 

 commencing to lay its eggs about June 30th. Mr. P. L. Jouy 

 has found this species quite abundant on the lower Potomac and 

 it has been taken also in the neighborhood of Washington (Field 

 and Forest, Vol. II, p. 29). 



17. Sterna hirundo. Common Tern; Wilson's Tern. — 

 Common summer resident on the sea coast; breeds at Cobb's 

 Island, beginning to la}' its eggs about the middle of May. Oc- 

 casionally found near Washington during late summer and early 

 fall. I found it common at Virginia Beach, Princess Anne County, 

 early in June. The A. O. U. list mentions that it winters north 

 to Virginia but it does not appear to be found at Cobb's Island at 

 that season. 



