Distribution and migration of North American gulls and their allies . r-rington Island in GreatSalt Lake, June 17,1869(Ridgway); Fort Reso-lution, Mackenzie, June26, 1860 (specimens inU. S. National Mu-seum) ; young justhatched, at Big StickLake, Saskatchewan,June 14, 1906 (Bent);and young, a few daysold, on Loon Island,Great Slave Lake, July13, 1901 (Preble). Fall migration. — Asingle California gull,unusually early, ap-peared at Monterey,CaL, August 1, 1894; nomore were seen untilAugust 21, and by thefirst of September thespecies was fairly com-mon. In 1896 the firstwas not seen until Sep-te
Distribution and migration of North American gulls and their allies . r-rington Island in GreatSalt Lake, June 17,1869(Ridgway); Fort Reso-lution, Mackenzie, June26, 1860 (specimens inU. S. National Mu-seum) ; young justhatched, at Big StickLake, Saskatchewan,June 14, 1906 (Bent);and young, a few daysold, on Loon Island,Great Slave Lake, July13, 1901 (Preble). Fall migration. — Asingle California gull,unusually early, ap-peared at Monterey,CaL, August 1, 1894; nomore were seen untilAugust 21, and by thefirst of September thespecies was fairly com-mon. In 1896 the firstwas not seen until Sep-tember 28, the nextOctober 9, and it wascommon from this lat-ter date (Loornis). AtBerkeley, Cal., the firstwas seen October 9, 1888 (Palmer); near San Pedro, CaL, Sep-tember 13, 1902 (Daggett); Magdalena Island, Lower California,November 24, 1905 (Nelson and Goldman); Puget Sound, Wash.,August 3 and 12 (specimens in U. S. National Museum); andChilliwack, British Columbia, August 26, 18S9 (Brooks). The lastwas seen at Hay River, Mackenzie, November 5, 1908 (Jones).. Fig. 21.—California gull (Larus calif amicus). NORTH AMERICAN GULLS AND THEIR ALLIES. 43 RING-BILLED GULL. Larus delawarensis Ord. Range.—North America from British Columbia, southern Macken-zie, and central Quebec south to Florida and southern Mexico. Breeding range.—The ring-billed gull occupies in summer a rathernarrow belt stretching across North America with its northern sidebeginning at Hamilton Inlet, Quebec (Macoun), and extending toFort George, on James Bay (eggs in U. S. National Museum); a littlenorth of Fort Churchill, Keewatin (Preble); and Great Slave Lake,
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