LARUS RIDIBUNDUS. 
BLACK-HEAD ED GULL, 
Generic Character, See Larus marinus. 
Synonyms. 
Larus ridi^undus. Lin, Syfl. i. p. 225. 9. Ind, 
Orn. 2. p, 8i 1. 2. 
Black-headed Gull. Br. ZooL 2. 252. LkfoL 143. 
tai^. L, 5. Ar^. ZooL 2. 445. Lath. 
Syn, e.p, 380. 9. Ib,fupt.p, 268. 
MonU Orn, Di5l, 1. Bewick's Br. 
Birds^ Pt, 2. />. 200. 
Larus cinerarius. Lift, Syji, 1, p, 224., 4. 
• RIDIBUNDUS. Far. /3. Ind. Orn. 2, p, 812, 2. 
Red-legged Gull. Jrcl. Zool. 2. p. 533. £. Lath. 
Syn. 6. />. 381, 10. 
Larus ridibundus. Var. y.. Ind. Orn. 2, p. 812. 
Brown-hraded Gull. Alhin's Birds, 2. iak 86. 
Lath. Syn. 6./. 383. 11. 
nr 
JL HE length of this bird is about fifteen inches, breadth 
nearly twenty-eight ; it weighs from nine to eleven ounces. 
Bill flender ; irides hazel, orbits deep red ; legs flender ; feet 
broad ; colours of the fexes alike. 
From the difference in the fummer and winter plumage of 
this bird, authors have made diftind fpecies j for the firft two 
years 
