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Taxonomy in this website is a
temporary expedient, and does not mean our opinions.
Identifications for some forms are sometimes tentative, and do
not always mean final conclusions.
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NEWS
1st winter Caspian Gull/Mongolian Gull Comparison page added Apr/24/08
3rd winter Thayer's Gull added Mar/12/08
Unidentified Gull added Mar/12/08
Heuglin's Gull added Mar/12/08
1st winter Slaty-backd Gull added Mar/06/08
Adult Vega Gulls added Feb/19/08
8 Thayer's Gulls in one day added Feb/09/08
1st winter Slaty-backd Gulls added Feb/09/08
1st winterVega Gulls in Decadded Feb/09/08
Adult Vega Gulls in flight added Jan/22/08
Ring-billed Gull added March/25/07
Kamchatka Gulls added March/25/07
Kamchatka Gulls added March/25/07
1st winter Vega Gulls and some others added March/15/07
Adult summer Glaucous-winged Gulladded Mar/11/07
2ndwinter American Herring Gulladded Mar/06/07
1st winter American Herring Gulladded Mar/06/07
Slaty-backed Gull x Glaucous-winged Gull hybrid added Mar/06/07
1st winter Thayer's Gull added Feb/20/07
Adult Thayer's Gull added Feb/20/07
1st winter Mongolian Gull added Feb/20/07
1st winter Slaty-backed Gulls added Feb/17/07
1st winter Slaty-backed Gull added Feb/8/07
1st winter Vega Gulls added Feb/8/07
Adult Mongolian Gull added Feb/7/07
Adult Mongolian Gull added Jan/21/07
Adult Mongolian Gulls in Shanghai added Jan/18/07
1st winter Mongolian Gulls in Shanghai added Jan/14/07
Adult Mongolian Gulls in Shanghai added Jan/01/07
AdultVega Gulls in Dec added Jan/01/07
AdultVegaGulls in Decadded Jan/01/07
Black-tailed Gull X Kamtchatka Gull hybrid added Dec/27/06
Juv/1w Vega Gulls added Nov/18/06
Juv/1w Slaty-backed Gulls added Nov/18/06
AdultVega Gulls added Oct/31/06
AdultVega Gulls added Oct/31/06
AdultVega Gulls added Oct/31/06
AdultVega Gulls added Oct/31/06
1st winterVega Gulls in Feb. added April/06/06
1st winterVega Gulls in Feb. added April/06/06
1st winterVega Gulls in Feb. added April/06/06
1st winterThayer's Gulladded March/07/06
1st winterThayer's Gulladded March/07/06
Glaucous Gullsadded March/05/06
Glaucous Gullsadded March/05/06
American Herring Gulladded Feb/17
Heuglin's Gulladded Feb/17
1st winter Vega Gullsadded Feb/10
1stwinter Vega Gulls added Feb/10
1st winter Mongolian Gulladded Jan/15/06
Adult Slaty-backed Gullsadded Feb/07
Kamchatka Gullsadded Jan/28/06
Adult Thayer's Gulladded Jan/19/06
1st winter and adult Vega Gullsadded Jan/15/06
1st winter Mongolian Gulladded Jan/15/06
1st winter Mongolian Gulladded Jan/15/062nd winter Vega Gull added Nov/25/05
2nd winter Mongolian Gull added Nov/25/05
Juv Vega Gull added Nov/25/05
Juv Heuglin'sGull added Nov/25/05
Watch out for Wing-tagged Mongolian Gulls in Japanadded Nov/6/05
Black-tailed Gullsadded Oct/14/05
Currently Japanese version only.
Identifications are often tentative, espacially in immatures and atypical birds
Adult Vega Gullsadded April/16/05
1st winter Vega Gulls added April/16/05
*Adult American Herring Gull added April/03/05
*Adult Mongolian Gull added April/03/05
*1st winter Vega Gulls added April/03/05
*1st winter Thayer's Gull added March/30/05
*Ad winter Thayer's Gull added March/30/05
*Ad winter Thayer's Gull added March/30/05
*Ad winter Thayer's Gull added March/30/05
*3rdor 4th? winter Heuglin's Gull added March/30/05
*Ad presumed Mongolian Gull added March/30/05
*1st winter /summer Mongolian Gulls added March/18/05
*1st winter /summer Slatybacked Gulls added March/18/05
*1st winter Veaga Gulls added March/11/05
*1st winter Thayer's or Kumlien's Gull added March/11/05
*Ad Thayer's Gulls added March/3/05
*Ad Vega Gulls added February/28/05
*1w Vega Gulls added February/28/05
*Juv-1w Vega Gulls added December/29/04
*Juv-1w Heuglin's/'taimyrensis' Gulls added December/29/04
*Adult Thayer's Gulls added December/25/04
*More photos of the Mongolian Gull added December/02/04
*Adult Mongolian Gulladded December/01/04
*Juv/1w Kamchatka Gullsadded November/26/04
*Juv/1w Thayer's Gull on Feb. 13th 2004 added November/18/04
*Vega Gulls added November/01/04
*Slaty-backed Gulladded November/01/04
*2nd winter American Herring Gulladded November/01/04
*Adult taimyrensis-type Gulladded November/01/04
*Adult taimyrensis-type Gulladded November/01/04
* Black-tailed Gullsadded October/16/04
* Slaty-backed Gullsadded October/16/04
*Adult Vega Gulls added October/16/04
*3 adult Vega Gulls added October/08/04
*Our Books
*Adult Heuglin's Gulladded April/14/04
*1st winter Mongolian Gulladded April/05/04
*1st winter Vega Gulladded April/05/04
*Adult winter Kamtchatka Gullsadded March/29/04
*Adult summer Ring-billed Gulladded March/29/04
*1st winter Vega Gullsadded March/28/04
*Adult Vega Gullsadded March/28/04
*Adult Mongolian Gulladded March/28/04
*Ring-billed Gull added March/21/04
*Mongolian Gull 1st winter added March/21/04
*Mongolian Gull Adultadded March/21/04
*Vega Gulls added March/21/04
*Vega Gulls on March 12th added March/17/04
*Adult Mongolian Gulls on March 5th (framed page)added March/8/04
*1st winter Mongolian Gulladded February/21/04
*Adult Ring-billed Gulladded February/21/04
*Adult Kumlien's Iceland Gulladded February/15/04
*1st winter Iceland Gulladded February/9/04
*Thayer's Gull :Juvenile,3rd winter,adult winteradded February/6/04
*1st winter Thayer's Gulladded January/23/04
*2nd winter Thayer's Gulladded January/23/04
*2nd winter Thayer's Gulladded January/19/04
*A slim-billed, female-type 2nd winter Glaucous-winged Gulladded January/18/04
*1st winter Vega Gullsadded January/17/04
*1st winter Slaty-backed Gullsadded January/17/04
*19 possible "barrovianus" Glaucous Gulls added January/11/04
*1st winter Vega Gulladded January/05/04
*8 Adult Glaucous-winged Gullsadded December/31/03
*Adult American Herring Gulladded December/28/03
*Adult Thayer's Gulladded December/28/03
*Adult Thayer's Gull added December/28/03
*Adult Thayer's Gull added December/25/03
*juv/1w American Herring Gulls added December/25/03
*Juv/1w Vega Gulls added December/25/03
*Adult Heuglin's Gull / intergrade added December/25/03
*Adult winter Saunders's Gulladded December/24/03
*Juv-1w Black-headed Gull (late-molter)added December/18/03
*Spread wings of Slaty-backed Gulls added December/18/03
*Adult dark/pale Slaty-backed Gullsadded December/13/03
*Adult Mongolian Gull added December/13/03
*Adult Thayer's Gull added December/13/03
*Adult Thayer's Gull added December/10/03
*The second Ring-billed Gull. found on March 28th August/09/03
*The first Ring-billed Gull in summer plumage March 26th August/09/03
*(Presumed) Caspian Gull and Mongolian Gull in January
*Adult Probable Caspian Gull March/27/03
*The Ring-billed Gull March/23/03
*1st winter Possible Steppe Gull (barabensis) March/23/03
*Second winter Iceland Gull March/23/03
*Possible Caspian Gull March/16/03
*Laughing Gull Ring-billed Gull Iceland Gull March/09/03
*Adult winter Glaucous Gulls / Iceland Gull March/06/03
*Adult winter Ring-billed GullMarch/01/03
*11 first winter Glaucous-winged Gulls, Feb./20/03
*Juvenile Thayer's Gull, 3rd-winter Thayer's Gull, Adult winter Thayer's Gull Feb./09/03
*"Dark-eyed" Slaty-backed Gulls, Leucistic adult Slaty-backed Gull Feb./08/03
*Gulls in flight :Vega, Slaty, Black-tailed, Glaucous, Glaucous-winged, Thayer's, Kamchatka, Mew, KittiwakeJan./31/03
*Gulls of the Choshi Fishing Port .( under construction ) Jan./24/03
*3rd or 4th winter Iceland Gull Jan./17/03, 1st winter probable Iceland Gull Jan./22/03
*Juv./1st winter Unidentified Gulls, Jan./15/03
*Adult winter American Herring Gull, Adult winter Thayer's Gull 1, Thayer's Gull 2 Dec./19/02
*Adult winter Thayer's GullDec./14/02
*3 Thayer's Gulls : Adult winter, Adult winteradded Nov./28/02Adult winterDec./07/02
*Lots of juv/1w Vega Gulls, and others?
*2 Juvenile thayer's Gulls
*Mongolian Gull 1, Mongolian Gull 2
*Laughing Gull
*Juvenile Thayer's Gulladded Dec./19/02
*Adult winter American Herring Gull and Juvenile probable American Herring Gulladded Nov./15/02
*Adult Mongolian Gull Juvenile Mongolian Gulladded Nov./10/02
*Juv/1st winter Vega Gulls added Nov./06/02 *Juv/1st winter Vega Gulls added Nov./07/02
*Mongolian Gull Juv/1st winter, Adult winter Juv/1st winterHeuglin's Gull (taimyrensis) Nov./05/02
*Mongolian Gull Heuglin's Gull (taimyrensis)added Oct./31/02
*(American) Herring Gulladded Oct./25/02 14 (American) Herring Gulls added Oct./26/02
*Heuglin's Gull, Vega Gull, Slaty-backed Gull, Black-tailed Gulladded Oct./18/02
*Images of Choshi Fishing Portadded Oct./17/02
*24Thayer's Gulls Click! New, added April 18.
Species
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