. The Canadian field-naturalist. 526 The Canadian Field-Naturalist Vol. 103 Aug-Oct Sept-Nov. Nov-Apr Nov-Apr ^^JC^ Figure 2. Routes of autumn migration showing approximate dates when Bonaparte's Gulls are locally abundant during autumn-winter. Atlantic Flyway — a: Moosonee, Ontario (R. D. McRae, personal communication), southwest coast of James Bay (R. I. G. Morrison, personal communication); b: Saguenay River, Quebec, Baie des Chaleurs, New Brunswick (David 1980); c: west coast of Newfoundland (J. Wells, personal communication); d: Baie Comeau (Harper 1958), Magdalen Islands, Quebec (Y. Aubr
. The Canadian field-naturalist. 526 The Canadian Field-Naturalist Vol. 103 Aug-Oct Sept-Nov. Nov-Apr Nov-Apr ^^JC^ Figure 2. Routes of autumn migration showing approximate dates when Bonaparte's Gulls are locally abundant during autumn-winter. Atlantic Flyway — a: Moosonee, Ontario (R. D. McRae, personal communication), southwest coast of James Bay (R. I. G. Morrison, personal communication); b: Saguenay River, Quebec, Baie des Chaleurs, New Brunswick (David 1980); c: west coast of Newfoundland (J. Wells, personal communication); d: Baie Comeau (Harper 1958), Magdalen Islands, Quebec (Y. Aubry, personal communication), Gulf of St. Lawrence (David 1980), salt marsh between Perce and Gaspe, Quebec (Wiseman 1976), Northumberland Strait (Boyer 1966), Prince Edward Island (Godfrey 1954), Cape Breton Island (Godfrey 1958); e: Quoddy region, New Brunswick (Braune 1987); f: Nantucket Island, Massachusetts (B. Nikula, personal communication), Boston-Newburyport, Massachusetts (R. S. Heil, personal communication), Massachusetts (R. A. Forster, personal communica- tion), Rhode Island (Pettingill 1951); g: Long Island, New York (R. G. Spahn, personal communication), Long Island and coastal New York (Cruickshank 1942; Burger and Brownstein 1968); h: Old Cape May, New Jersey (Stone 1937) Delaware Valley (Brady et al. 1972), Maryland (Robbins and Bystrak 1977), Virginia (Larner et al. 1979); i: North Carolina, Georgia (Pettingill 1951), South Carolina (Sprunt and Chamberlain 1949), South Carolina, Florida (K. D. Powers, personal communication), Florida (M. M. Simons, Jr., personal communication). Mississippi Flyway j: Churchill, Manitoba (Jehl and Smith 1970), northwestern Alberta (Gunn et al. 1975); k: Alberta (Wedgwood 1982), Montana (Lambeth 1982); 1: Lake Michigan (Pettingill 1951); m: Sarnia, southwestern Ontario (A. H. Kelley, personal communication), Niagara River eastern Lake Erie region (Beardslee 1944), northwestern New York (R. G. Spahn, personal communication); n: O
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