436 THROUGH THE MACKEl^ZIE BASIN 



a great amount of noisy demonstration on the part of several 

 rivals, but once paired they keep by themselves and early in 

 June deposit their eggs in a depression on the mossy top of 

 some knoll upon a rising ground. The National Museum 

 collection at Ottawa contains one bird specimen procured at 

 York Factory, Hudson Bay, by Dr. R. Bell, and one egg 

 taken at George River, Ungava Bay, Labrador, by J. Eorde 

 in 1896. 



42. Glaucous Gull— Larws glaucus Brown. 



Altogether some twenty nests were gathered by our col- 

 lecting parties, chiefly on sandy islets in the bays of Franklin 

 and Liverpool, and a few of these were also found on islands 

 in the lower Anderson River ; but the bird itself was observed 

 in various localities. 



Fifteen of the seventy nests secured contained two eggs 

 each and but five held as many as three. The nest was usually 

 a shallow depression in the beach, while in one of them 

 we discovered an egg of the black brant which was being 

 incubated by a bird of this species. The egg of the goose 

 was in a more embryo-developed stage than those of the gull, 

 which we have always considered as about the bravest of the 

 Laridw in defense of its eggs and young. Abundant on Great 

 Slave Lake and at Richmond Gulf, Hudson Bay, and on the 

 Labrador coast. The Ottawa Museum possesses but one 

 bird skin, taken off Resolution Island, Hudson Strait, in 

 1885, by Dr. Bell, and fourteen eggs from Disco, Green- 

 land, Cape Prince of Wales on Hudson Strait, Great Whale 

 River, and James Bay, Hudson Bay. 



43. Iceland Gull — Larus leucopterus Faber. 



This species was not seen, or at all events no specimens 

 found their way to Fort Anderson from Liverpool Bay, but 

 several sets of the eggs were procured on the shores 

 of Franklin Bay early in July, 1868, and again in July, 



