Larus sp. at Barling Rubbish Tip.
Note the very large mirror on the underside of P10 which does not reach the small white feather tip. , 10/01/2004
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Barling Rubbish Tip.
Probable ''northern' argentatus Herring Gull. Note the very large size and very dark upperparts which were intermediate between normal Herring Gull and graellsii Lesser Black-backed Gull., 10/01/2004
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Paglesham Lagoon.
Leucistic 'probable' Herring Gull, Paglesham Lagoon 26/11/05, 26/11/2005
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Canvey Wick.
Presumbed leucistic Herring Gull, Hole Haven Creek 23/12/05, 23/12/2005
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Canvey Wick.
Presumbed leucistic Herring Gull, Hole Haven Creek 23/12/05, 23/12/2005
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Hole Haven Creek.
Adult white-winged larus, Hole Haven Creek 25/02/06, 25/02/2006
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Hole Haven Creek.
Adult white-winged larus, Hole Haven Creek 25/02/06, 25/02/2006
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Hole Haven Creek.
Adult white-winged larus, Hole Haven Creek 25/02/06, 25/02/2006
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Hole Haven Creek.
Adult white-winged larus, Hole Haven Creek 25/02/06, 25/02/2006
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Hole Haven Creek.
Adult white-winged larus, Hole Haven Creek 25/02/06, 25/02/2006
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Hole Haven Creek.
Adult white-winged larus, Hole Haven Creek 25/02/06, 25/02/2006
(© Steve Arlow, Nikon Coolpix 995 with Kowa TSN824 scope)

Larus sp. at Canvey Wick.
hybrid - presumed GlaucousxHerring Gull, 27/10/2007
(© Steve Arlow, Nikon Coolpix 995 with Swarovski HD80 scope)

Larus sp. at Canvey Wick.
hybrid - presumed GlaucousxHerring Gull, 27/10/2007
(© Steve Arlow, Nikon Coolpix 995 with Swarovski HD80 scope)

Larus sp. at Hole Haven Creek.
presumed 1st winter hybrid 18/02/08, 18/02/2008
(© Steve Arlow, Nikon Coolpix P5000 with Swarovski ATS 80HD)

Larus sp. at Hole Haven Creek.
presumed 1st winter hybrid 18/02/08, 18/02/2008
(© Steve Arlow, Nikon Coolpix P5000 with Swarovski ATS 80HD)

Larus sp. at Hole Haven Creek.
Probably GlaucousxHerring Gull 1st winter hybrid Hole Haven 29/02/08, 29/02/2008
(© Steve Arlow, Nikon Coolpix P5000 with Swarovski ATS 80HD)

Larus sp. at Private site with no public access.
presumed Glaucous x Herring Gull 2nd winter, 140309, 14/03/2009
(© Steve Arlow, Canon 1D MK3 with Canon 500mm plus 1.4x extender)

Larus sp. at Private site with no public access.
Hybrid - presumed Glaucous x American Herring or European Herring Gull, 13/12/2014
(© Steve Arlow, Canon 1D MKIII 500mm with 1.4x Canon Extender )

Larus sp. at Private site with no public access.
Presumed Leucistic Herring or Herring xArctic Gull sp hybrid 28-02-2015, 28/02/2015
(© Steve Arlow, Canon 1D MKIII 500mm with 1.4x Canon Extender )

Larus sp. at Private site with no public access.
Probable 'Nelsons Gull' first identified as Glaucous, 04/04/2015
(© Richard Howard, Panasonic LUMIX DMC-FZ72)

Larus sp. at Private site with no public access.
Probable 'Nelsons Gull' first identified as Glaucous, 04/04/2015
(© Richard Howard, Panasonic LUMIX DMC-FZ72)

Larus sp. at Bowers Marsh (RSPB).
"Nelson's Gull", 16/05/2015
(© Paul Griggs, Samsung S3 with Nikon 30x80ED fieldscope)

Larus sp. at Private site with no public access.
Kumliens like Hybrid 30/01/2016, 30/01/2016
(© Steve Arlow, Canon 1D MKIII 500mm with 1.4x Canon Extender )

Larus sp. at Private site with no public access.
unknown white winged Gull - very large very dark male Iceland / large Kumliens or hybrid GlaucxHerring ?, 13/02/2016
(© Steve Arlow, Canon 1D MKIII 500mm with 1.4x Canon Extender )