Lesser Black-backed Gull

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• White-crowned Sparrow (12)
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• Yellow Warbler (Northern) (36)
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• Yellow-rumped Warbler (Myrtle) (14)
• Yellow-rumped Warbler (Audubon's) (22)
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• Townsend's Warbler (35)
• Hermit X Townsend's Warbler hybrid (4)
• Hermit Warbler (4)
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• Cardinals, Piranga Tanagers, New World Buntings (0)
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• More Breaching, Monterey Bay (12)
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• Female "Fulcrum" Entangled in Fishing Gear (19)
• Seabird and Whale Tales 2005 (39)
• Male "Breaker" breaching, spy hopping, tail waving (32)
• Female "Siphon" with calf (18)
• Bubble Feeding (24)
• Stellwagen Bank Christmas Bird Count 2004 (10)
• Common Minke Whale (3)
• Sei Whale (16)
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• Dolphins, Killer Whale, Pilot Whales (0)
• Bottlenose Dolphin (34)
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• Risso's Dolphin (39)
• Killer Whale (19)
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• Lunar Eclipse (20)
• Endangered Species (0)
• Endangered Birds (0)
• Somali Ostrich (17)
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• Greater Sage-Grouse (4)
• Sooty Grouse (27)
• Lesser Flamingo (40)
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• Allen's Hummingbird (27)
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• Ridgway's Rail (San Francisco Bay) (11)
• King Rail (19)
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• Hudsonian Godwit (40)
• Marbled Godwit (28)
• Black Turnstone (14)
• Red Knot (8)
• Surfbird (20)
• Stilt Sandpiper (5)
• Sanderling (40)
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• Semipalmated Sandpiper (21)
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• Red-billed Tropicbird (21)
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• Northern Royal Albatross (20)
• Southern Royal Albatross (24)
• Antipodean Albatross (12)
• Laysan Albatross (59)
• Black-footed Albatross (39)
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• Fork-tailed Storm-Petrel (16)
• Leach's Storm-Petrel (0)
• Townsend's Storm-Petrel (25)
• Ashy Storm-Petrel (71)
• Band-rumped Storm-Petrel (18)
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• Fea's Petrel (9)
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• Cook's Petrel (7)
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• Cory's Shearwater (40)
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• Great Shearwater (32)
• Buller's Shearwater (72)
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• Swainson's Hawk (12)
• Burrowing Owl (3)
• Spotted Owl (9)
• Long-eared Owl (7)
• Short-eared Owl (27)
• Eared Quetzal (9)
• Yellow-throated Toucan (6)
• Lewis's Woodpecker (23)
• Red-headed Woodpecker (8)
• Nuttall's Woodpecker (3)
• Red-cockaded Woodpecker (31)
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• Red-footed Falcon (4)
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• Olive-sided Flycatcher (9)
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• Bell's Vireo (12)
• Loggerhead Shrike (3)
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• Island Scrub-Jay (9)
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• Wrentit (8)
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• Black-capped Gnatcatcher (6)
• Yucatan Wren (3)
• Bendire's Thrasher (4)
• California Thrasher (18)
• Le Conte's Thrasher (16)
• Crissal Thrasher (15)
• Varied Thrush (11)
• Wood Thrush (8)
• Black Rosy-Finch (26)
• Brown-capped Rosy-Finch (12)
• Lawrence's Goldfinch (7)
• Chestnut-collared Longspur (8)
• Bachman's Sparrow (4)
• Five-striped Sparrow (4)
• Black-chinned Sparrow (20)
• Brewer's Sparrow (0)
• Harris's Sparrow (13)
• Bell's Sparrow (4)
• Le Conte's Sparrow (10)
• Saltmarsh Sparrow (6)
• "Alameda" Song Sparrow (9)
• Abert's Towhee (4)
• Audubon's Oriole (3)
• Tricolored Blackbird (6)
• Rusty Blackbird (6)
• Worm-eating Warbler (12)
• Golden-winged Warbler (7)
• Blue-winged Warbler (4)
• Prothonotary Warbler (12)
• Swainson's Warbler (6)
• Lucy's Warbler (11)
• Virginia's Warbler (4)
• Kentucky Warbler (7)
• Salt Marsh Common Yellowthroat (10)
• Bay-breasted Warbler (4)
• Prairie Warbler (4)
• Grace's Warbler (6)
• Hermit Warbler (4)
• Canada Warbler (8)
• Red-faced Warbler (3)
• Summer Tanager (16)
• Orange-breasted Bunting (20)
• Varied Bunting (8)
• Painted Bunting (8)
• Shining Honeycreeper (7)
• Endangered Mammals, Reptiles and Amphibians (0)
• Geoffroy's Tamarin (8)
• Leopard (2)
• Northern Fur Seal (39)
• Steller Sea Lion (16)
• Sea Otter (22)
• Topi (8)
• Thomson's Gazelle (9)
• Gerenuk (12)
• African Buffalo (24)
• Beisa (0)
• Defassa Waterbuck (6)
• Humpback Whale (1)
• Sei Whale (16)
• Fin Whale (20)
• Blue Whale (25)
• Leatherback Turtle (1)
• American Crocodile (1)
• California Curiosities (0)
• White Wagtail, Santa Cruz, November 2020 (12)
• Emperor Goose, Pacifica, January 2017 (10)
• Ross's Gull, Half Moon Bay Airport, January 2017 (16)
• Yellow-green Vireo, Seaside, October 2015 (8)
• Red-backed Shrike x Red-tailed Shrike hybrid, Manchester SP, April 2015 (20)
• Le Conte's Sparrow, Point Reyes, December 2014 (10)
• Painted Bunting, Mountain View, November 2011 (8)
• White-chinned Petrel, Bodega Bay pelagic, October 2011 (10)
• Dusky-capped Flycatcher, Santa Cruz, December 2010 (8)
• Short-tailed Albatross, Bodega Bay pelagic, November 2010 (11)
• Ivory Gull, Grover Beach, November 2010 (20)
• possible Taverner's Cackling Goose, Oakland, October 2010 (7)
• Gray Catbird, Dimond Park, Oakland, October 2010 (4)
• Gray Flycatcher, Oakland, January 2010 (11)
• possible Taverner's Cackling Goose, Palo Alto, November 2009 (6)
• Summer Tanager, Mendocino Co., September 2009 (4)
• Cook's Petrel, Monterey Bay, August 2009 (7)
• "Mangrove" Yellow Warbler, San Diego, February 2009 (4)
• Worm-eating Warbler, San Francisco, February 2009 (12)
• Harris's Sparrow, Richmond, November 2008 (6)
• Lucy's Warbler, Coyote Point, San Mateo Co., November 2007 (10)
• Oiled Birds, Cosco Busan Oil Spill, Alameda, November 2007 (43)
• Horned Puffin, Moss Beach, June 2007 (4)
• Parakeet Auklet, Ventura County pelagic, April 2007 (12)
• Smew, Soulsbyville, January 2007 (26)
• Brown Booby, Monterey, January 2007 (9)
• Harris's Sparrow, Petaluma, January 2007 (7)
• "Al B. Tross" the Laysan Albatross, Point Arena, January 2007 (8)
• Ruff, Alviso, October 2006 (19)
• Summer Tanager, San Francisco, January 2006 (6)
• Sharp-tailed Sandpiper, Alviso, December 2005 (9)
• Tufted Duck, Lake Merritt, Oakland, November 2005 (6)
• Bell's Vireo, San Francisco, November 2005 (12)
• New England Notables (0)
• Fork-tailed Flycatcher, Stamford, Connecticut, November 2010 (12)
• White-faced Storm-Petrel, Brookline Bird Club Pelagic Trip, August 2010 (20)
• Band-rumped Storm-Petrels, BBC pelagic trip, August 2010 (11)
• Wilson's Plover, South Beach, Massachusetts, September 2005 (2)
• Band-rumped Storm-Petrel, Hydrographer Canyon, Massachusetts, August 2005 (7)
• Sedge Wren?, Concord, Massachusetts, August 2005 (6)
• Little Gulls, Plum Island, Massachusetts, June 2005 (16)
• Common Moorhen, Concord, Massachusetts, June 2005 (1)
• Phalarope Wreck, May 2005 (16)
• California Gull, Lynn, Massachusetts, April 2005 (6)
• Prothonotary Warbler, Marblehead, Massachusetts, April 2005 (12)
• Cackling Goose or "Lesser" Canada Goose, Waltham, Mass., November 2004 (16)
• American Avocet, East Boston, Massachusetts, September 2004 (6)
• Connecticut Warbler, Boston, Massachusetts, September 2004 (12)
• Red-Footed Falcon, Martha's Vineyard, Massachusetts, August 2004 (4)
• King/Clapper? Rails, Parker River NWR, Massachusetts, June 2004 (0)
• King Rail - male (16)
• probable "Cling" Rail - female and pair (10)
• Gray-cheeked / Bicknell's Thrush, Boston, Massachusetts, May 2004 (12)
• "Brewster's Warbler," West Newbury, Massachusetts, May 2004 (8)
• Kentucky Warbler, Marblehead, Massachusetts, May 2004 (7)
• Black-backed Woodpecker, Bethlehem, New Hampshire, April 2004 (12)
• Bohemian Waxwing, Ashland, New Hampshire, April 2004 (4)
• Northern Saw-whet Owl, Boston Public Library, April 2004 (5)
• Glaucous Gull, Gloucester, Massachusetts, February 2004 (6)
• King Eider, Rockport, Massachusetts, February 2004 (8)
• Thick-billed Murre, North Hampton, New Hampshire, February 2004 (8)
• Bohemian Waxwing, Royalston, Massachusetts, February 2004 (3)
• Dovekie, Wellfleet, Massachusetts, January 2004 (8)
• Lesser Black-backed Gull, Boston, December 2003 (1)
• Little Stint, Rye, New Hampshire, August 2003 (5)
• Gyrfalcon, Boston, Massachusetts, December 2002 (5)
• King Eider, Gloucester, Massachusetts, December 2002 (6)
• Louisiana Waterthrush, Boston, Massachusetts, October 2002 (8)
• Eurasian Kestrel, Chatham, Massachusetts, April 2002 (3)
• Gyrfalcon, Boston, Massachusetts, February 2002 (3)
• Redhead, Boston, Massachusetts, January 2002 (1)
• Trips (0)
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• Scaled Pigeon (1)
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• Squirrel Cuckoo (5)
• Great Potoo (10)
• White-necked Jacobin (12)
• Long-billed Hermit (6)
• White-vented Plumeleteer (4)
• Blue-chested Hummingbird (4)
• Violet-bellied Hummingbird (3)
• Common Gallinule (2)
• Wattled Jacana (6)
• Spotted Sandpiper (1)
• Red-billed Tropicbird (14)
• Magnificent Frigatebird (12)
• Rufescent Tiger-Heron (4)
• Cattle Egret (2)
• Striated Heron (2)
• Black Vulture (5)
• Turkey Vulture (1)
• Osprey (11)
• Black Hawk-Eagle (6)
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