[41] 



the spring of 1882 (The Auk, Vol. V, p. 147), and I also learn 

 from Dr. A. K. Fisher of another captured on the Potomac near 

 Fort Washington, October 20th, 18S9. 



6. Alca torda. Razor-billed Auk. — Rare winter visitor 

 on the sea coast. Captain Charles H. Crumb informs me that 

 three have been taken near Cobb's Island, two in 1884, and one 

 in 1887, one of which is now in my possession. A male was 

 shot in the vicinity of Norfolk about October i5t]i, 1886, ac- 

 cording to Mr. F. S. Webster, of Washington (The Auk, Vol. 

 IV, p. 15S). 



7. Rissa tridactyla. Kittiwake Gull. — Captain Crumb 

 reports this species as a rare and irregular winter visitor at Cobb's 

 Island, but has never taken a specmien. 



8. Larus marinus. Great Black-backed Gull. — 

 Rare winter visitor. Has been taken (including the adult) at 

 Cobb's Island, where, on the authority of Captain Crumb, it is 

 not common although seen every winter. A specimen of the 

 young bird from that locality, which is the most southern from 

 which this species has been recently recorded, is in my possession. 

 Audubon, however, says that he saw several pairs in company 

 with the young Brown Pelican at St. Augustine and that the 

 young extend their winter migrations to the middle portions of 

 the east coast of Florida. 



9. Larus argentatus smithsonianus. Herring Gull. — 

 Common v^^inter resident of the Coast region ; occasionally seen 

 near Washington, along the Potomac. Reported by Dr. Wheaton 

 to be not uncommon on the Ohio River. Has been observed in 

 spring by Dr. J. R. Mathers, of Buckhannon, VV^est Virginia. 



10. Larus delawarensis. Ring-billed Gull. — Common 

 winter i-esident of the Coast region ; most numerous at Cobb's 

 Island in the autumn ; more frequently seen near Washington 

 than the preceding species, according to Drs. Cones and Prentiss. 



11. Larus atricilla. Laughing Gull. — Common summer 

 resident on the coast arriving early in April. One of the most abun- 

 dant gulls at Cobb's Island where numbers commence to breed 

 about the 20th of June. It is said to he a rare visitor during late 

 summer and early autumn near Washington. 



12. Larus Philadelphia. Bonaparte's Gull. — Spring 



