Yesterday, no sign of the adult Caspian Gull or imm Iceland Gull, but prolonged observation of the landfill area produced sightings of 10 colour-ringed Herring Gulls. Details received so far are as follows per contacts at cr-birding.org
Dogsthorpe Tip, Peterborough, England 22 01 2017
Thank you for reporting your colour ring sightings. 5R4B is also one of mine,They are all birds which were colour-ringed ringed at Harewood Whin landfill site, to the west of York, (53.960 -1.177). The birds were caught using a Cannon Net and are some of around 2500 Gulls, which have been caught and colour ringed to date. Harewood Whin is one of the decreasing numbers of Landfill sites in the UK where it is possible to operate for the catching and ringing of gulls. Whilst with us the gulls feed on the Landfill site during the day and roost on the floods in Lower Derwent Valley National Nature Reserve or on the Humber Estuary. Ringing and sighting details for each bird are given below. I have entered all the records in the BTO record systemI hope you find this of interest and many thanks for taking the time to report your sightings.
Best Regards
Mike Jackson
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Ringing details are as follows: -
Colour ring number Y:513
BTO ring number GV35195
Age when rung BTO code 7 (Definitely hatched in calendar year before last)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 1st April 2016
Yours is the first sighting since it was rung
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Colour ring number Y:083
BTO ring number GV31763
Age when rung BTO code 5 (Definitely hatched in previous calendar year)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 26th October 2015
Yours is the first sighting since it was rung
………………………………………………………………………………………………
Colour ring number Y:035
BTO ring number GV31714
Age when rung BTO code 5 (Definitely hatched in previous calendar year)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 26th October 2015
Previously seen at Dogsthorpe Tip, Peterborough on 22nd January 2017
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Colour ring number Y:750
BTO ring number GV42691
Age when rung BTO code 5 (Definitely hatched in previous calendar year)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 4th November 2016
Previously seen at Staple Quarry, Notts on 17th February 2017 and at Bain on 29th March 2017
………………………………………………………………………………………………
Colour ring number Y:934
BTO ring number GV52819
Age when rung BTO code 3 (Definitely hatched in current calendar year)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 4th November 2016
Previously seen at Sharwell Lagoons, Leicestershire on 13th February 2017
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Colour ring number Y:G76
BTO ring number GV58592
Age when rung BTO code 7 (Definitely hatched in calendar year before last)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 30th June 2017
Yours is the first sighting since it was rung
………………………………………………………………………………………………
Colour ring number 5R4B
BTO ring number GV16054
Age when rung BTO code 5 (Definitely hatched in previous calendar year)
Site, Harewood Whin, York (53.960 -1.177)
Date of ringing 20th March 2015
A schedule showing sighting history of 5R4B is attached:
Ring Age/ Capture
number Type Date Initial Details
Herring Gull
GV16054 N 4 20/03/15 JTH Rufforth Waste Disposal site, York
O 9 Sighted 22/01/16 MFJ Rufforth Airfield, York (4 km, S, 308 days)
S 9 Sighted 14/01/17 MFJ Gibraltar Point, Lincolnshire
(140 km, SE, 1 yr. 300days)
S 9 Sighted 04/11/17 MFJ Cotesbach Landfill Site, Leicestershire
(172 km, S, 2 yrs. 229days)
