266 NORTH AMERICAN FAUNA. [so. 27. 



10. During my stay at Fort Franklin, September 18 to 27, I observed 

 one or more nearly every day, and one was seen near the head of 

 Bear River, September 28. While ascending the Mackenzie I saw 

 one near the Blackwater, October 8 ; another 10 miles below Fort 

 Wrigley, October 10; and a few daily between Fort Wrigley and 

 Nahanni River, October 11 to 13. 



In the spring of 1904 large gulls, probably of this species, were first 

 observed near Fort Providence by J. W. Mills, May 4. I did not see 

 any at Fort Simpson until May '24. The species undoubtedly had 

 arrived some time previously, but from its scarcity had been over- 

 looked. It was several times observed during the latter part of the 

 month. While descending the Mackenzie in June, I occasionally 

 noted a few between Forts Simpson and Good Hope, taking one at 

 the mouth of the Blackwater, about 50 miles below Fort Wrigley, 

 June 9. Along the lower Mackenzie and Peel rivers, between Forts 

 Good Hope and McPherson, I saw it daily, June 26 to July 1. While 

 ascending the Mackenzie during the latter part of July, I occasionally 

 observed the species, and it was common on Great Slave Lake, July 

 31 and August 1. 



Sabine recorded a specimen of this species killed on a cliff in the 

 North Georgia Islands (Melville Island)." M'Clintock states that 

 the silvery gull breeds at Bellot Strait, where it had eggs June 25, 

 1859.'' McCormick took it near Beechey Island, Wellington Channel, 

 September 8, 1852, and July 21, 1853. c Armstrong, in his narrative 

 of the voyage of the In vestigator, states that the species was shot 

 on Prince Albert Land, June 9, 1851 ; d he also noted it at Mercy Bay, 

 Banks Land, May 31, 1852. e Saunders records two specimens taken 

 by Doctor Anderson of the Enterprise on Prince Albert Land/ 

 Baird, Brewer, and Ridgway state that it was found breeding at 

 Fort Resolution, Fort Rae, Big Island, Fort Simpson, Fort Anderson, 

 and on the lower Anderson and Horton rivers.'' The National Muse- 

 um catalogue shows that the species was received also from Great 

 Bear Lake; and a specimen from Fort Resolution taken by Kennicott, 

 June 16 [1860], and one from Big Island, are still in the collection. 



Hubert Darrell informs me that he observed a large gull with 

 black on the wings, probably this species, on Bathurst Inlet, June 29, 

 1902. 



" Suppl. to Appendix Parry's First Voyage, p. cciv, 1S24. 



b Voyage of the Fox, p. 290, 1SG0. 



'' McCormick's Voyages, II, pp. 157, S4, 1884. 



d Narr. Discovery Northwest Passage, p. 347, 1857. 



e Ibid., p. 521, 1S57. 



f Cat Birds Brit. Mus., XXV, p. 2<><>, 1896. 



3 Water Birds N. A., II, p. 238, 1884. 



