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| Black-legged Kittiwakes
| Red-legged Kittiwake
| Ivory Gull
| Ivory Gull
|
| Gjesvaerstappen Reserve, Norway
| St. George Island, Pribilof Islands, Alaska
|
SE of Edgeøya, Svalbard, Norway | Liefdefjorden, Svalbard, Norway
|
| July 2001
| June 2004
| July 2001
| July 2001
|
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| Brown-hooded Gull
| Black-billed Gull
| Red-billed Gull
| Silver Gull
|
| Chilean Tierra
del Fuego |
Queenstown, New Zealand |
Near Kaikoura, New
Zealand | Adelaide, SA, Australia |
| October 2002
| November 2004
| November 2004
| October 2004
|
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|
|
|
|
| Black-headed Gull
| Dolphin Gull
| Gray Gull
| Laughing Gull
|
| Zhupanove River,
Kamchatka Peninsula, Russia | Chilean Tierra del Fuego
| Arica, Chile
|
Sea Island, Georgia |
| June 2004
| October 2002
| November 2002
| March 2004
|
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|
 |
 |
|
| Laughing Gull
| Heerman's
Gull | Yellow-footed
Gull | Herring Gull
|
| Sanibel Island,
Florida | Isla Rasa, BC,
Mexico | Isla San
Esteban, Sonora, Mexico | Sea Island, Georgia
|
| February, 2003
| May 2006 | May 2006 | March 2004
|
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|
|  |
|
| Glaucous-winged Gull
| Glaucous Gull
| Kelp Gull
| |
| Glacier Bay NP, Alaska
| Liefdefjorden, Svalbard, Norway
| Chilean Tierra del Fuego
| |
| May 2003
| July 2001
| October 2002
| |
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