Gulls

species:

Great Black-backed Gull

scientific name:

Larus marinus

notes:

Yellow ring with a black three alpha-numeric code (1 letter and 2 numbers).
Yellow ring with a black three alpha-numeric code (1 letter/1 number/1 letter).

Project 1 – Caithness, Scotland.

note 1 : birds are ringed as pullus at the Caithness colonies, north of Helmsdale, North East Scotland.
note 2 : c-ring on left leg ; BTO metal ring on right leg.
note 3 : The following letters have not been used B, D, F, G, I.
note 4 : used code for 2002 : A00-A99. (100 birds)
note 5 : used code for 2003 : C01-C36, C41-C44 and C51-C61. (51 birds)
note 6 : used code for 2004 : C37-C38 and C45-C50. (8 birds)
note 7 : used code for 2005 : C39-C40 and C62-C72. (13 birds)
note 8 : used code for 2006 : C73-C90. (18 birds)
note 9 : used code for 2007 : C91-C00 and E31-E55. (35 birds)
note 10 : used code for 2008 : E01-E27. (27 birds)
note 11 : used code for 2009 : E56-E00 and H01-H14. (59 birds)
note 12 : used code for 2010 : H15-H00 and J01. (86 birds)
note 13 : used code for 2011 : J02-J69. (68 birds)note 14 : used code for 2012 : J70-J00. (32 birds)
note 15 : used codes for 2013 : (blue colour rings used)
note 16 : used codes for 2014 : (blue colour rings used)
note 17 : used codes for 2015 : (blue colour rings used)
note 18 : used codes for 2016 : L51-L58. (8 birds)
note 19 : used codes for 2017 : L59-L68. (10 birds)
note 20 : used codes for 2018 : L69-L70, L73-L74. (4 birds)
note 21 : used codes for 2019 : L75-L76 (2 birds)

email sighting submit:

colour-ring type:

Legring : one, coded.

colour-ring colour (of the c-ring):

Yellow [Y]

colour-ring code (of the c-ring):

Three alpha-numeric code (3 letters/numbers).

colour-ring position (of the c-ring):

Tarsus left.

countries where ringed:

Scotland.

Images: