of the District of Montreal, 411 



1st and 2ncl with a long whife space near their tips ; all the 

 others including the scapulars and secondaries broadly tipped 

 with white ; all the other aspects white. 



In winter plumage, the head and neck are spotted with black 

 and the young is brownish cinereous varied with rusty. 



Length 19 inches ; alar expanse about 36 inches. 



L.fuscus. Silvery Gull. 



v.s.p. Bill yellow, angle on the lower mandible lively red ; 

 legs and feet yellow ; irides hazel ; orbits red ; eggs 2, olive brown 

 or grey, blotched with dusky. 



Winter plumage. Mantle slate black; 1st and 2nd primaries 

 with an oval white spot ; all the other parts of the' quills black, 

 except a white tip, which is also observable on the scapulars and 

 secondaries ; head and neck streaked with light brown ; ventral 

 aspect and tail white. In summer the head and neck are pure 

 white, and the young bird is bluish grey, mottled with yellowish 

 rusty. 



Length 20 inches; alar expanse about 38 inches. 



L. argentatus. Herring Gull. 

 L. argenteus of Brehm ! 

 L. argentatus. Baird ! 

 v.s.p. Bill and orbits yellow, the former with the angle of the 

 lower mandible lively red ; irides hazel; legs and feet flesh colour ; 

 eggs 2 or 3 olivaceous, spotted with dark cinereous. 



Summer plumage of adult. Ventral aspect, head, neck, rump, 

 and tail pure white ; mantle bluish ash colour ; primaries black 

 towards their extremities ; the fir.^t one with a spot of white near 

 the tip, which is obsolete on the second ; and all of them, as well 

 as the secondaries and scapulars, tipped with white. In winter 

 the head and neck are varied with brown Hues. The young bird 

 blackish ash, mottled with rusty. 



Length 24 inches ; alar expanse 50 inches. The female is 

 about an inch shorter than the male. This gull is commonly met 

 with in the autumn. 



L. glaucus. Burgomaster. 

 L. glaucus. Baird ! 

 v.s.p. Bill brown colour at the base, blackish near the tip ; 

 legs and feet flesh colour; irides dark hazel; eggs 3 pale purplish 

 grey, spotted with umber brown and pale purple. 



