50 . THE WILSON BULLETIN No. 59. 



known to breed there annually." This species seems to have suffered 

 the same fate here as it has in the adjoining localities, and from a 

 common breeder has been reduced to the position of a regular mi- 

 grant, becoming rarer before the encroachments of civilization. We 

 have observed single birds at Pelee at various times and the fisher- 

 men inform us that at times they take considerable numbers in their 

 nets. The only places where the loon seems to breed in the adjoin- 

 ing country is on the little isolated lakes of the interior, such as those 

 of Oakland county, Michigan, where but a pair or so still manage 

 to perform the duties of nidification. 



4. * Larus argcntatus, Herring Gull. 



We have found the Herring Gull a common species during all our 

 visits, even as late as May 22 (1906), and as early as September 1 

 (1905-06). At times of high wind they frequent the surf at the end 

 of the Point. At other times they can generally be found on the stakes 

 of the pound nets that stretch for some distance out into the lake 

 on both sides of the Point September 13, 1905, we were presented 

 by some fishermen with a very wet and bedraggled Sharp-shinned 

 Hawk (Accipiter velox) that they had picked up out of the lake 

 where it had been buffeted by the Herring Gulls, and would cer- 

 tainly have been drowned if it had not been rescued for another 

 fate. It seems almost incredible that a bird as large as this gull 

 should have any cause to fear this small Accipiter, but there must be 

 some basis in past experience to form such an antipathy as- this case 

 shows. From our experience at the western end of Lake Erie and 

 the Detroit River we regard the species as common throughout the 

 winter as long as there is open water. 



5. Larus Philadelphia, Bonaparte's Gull. 



Without doubt a common and regular migrant. We have noted 

 it on all spring visits as late as June 1, 1907. We have not seen it in 

 September, but found it present October 14, 1906, and October 29. 

 1905. A few imniatures may remain during the summer. 



6. Sterna caspia, Caspian Tern. 



Noted by Saunders on the east shore late in August, 1882. We saw 

 four flying up and down the same shore May 13, 1905, in company 

 with Common Tern; and September 8, 1905, Mr. Swales saw two 

 adults flying just out of gun range near the end of the Point. (Auk. 

 XXIV, 1907, p. 137.) 



7. * Sterna hirundo,- Common Tern. 



An abundant migrant and observed commonly on nearly all visits 

 and as late as September 20, 1906, though none have been seen in 

 October. Breeds in great numbers on the Hen and Chicken Islands 

 directly south in Lake Erie. 



