Gulls and Terns

first winter: 1st winter, Rideau River, ring-billed gull: Larus delawarensis

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first winter: 1st winter, Rideau River, ring-billed gull: Larus delawarensis

Aves Birds Birds of North America Charadriiformes Gulls Laridae Larinae Locations Ontario Ottawa Rideau River first winter 1st winter ringbilled gull Larus delawarensis