Saturday, 18 March 2017

Colour Ringed Oystercatchers

Since Autumn 2015, all oystercatchers caught in Pembrokeshire have been colour-ringed. Most of the 38 that have been ringed so far have been caught at the Gann, with six ringed on Skokholm and one at Sandy Haven. Of these, 17 have been subsequently seen again involving 44 resightings in total. The commonest scenario by far is to see birds back at the same site as they were ringed, though there is clearly a link between The Gann and Skomer/Skokholm with six individuals moving between these sites. So far only two have been recorded outside of Pembrokeshire "A1" and "04";

"A1" was ringed at The Gann on 14/03/2016 and was seen on Tiree on 13/03/2017.

"04" was ringed at The Gann on 16/10/2015 and spent the summer at Stranraer, before returning to the Gann on 11/08/2016.

"A4" was also ringed at the Gann on 14/03/2016, and was seen on Skomer on 21/07/2016 and again there on 16/03/2017.

Oystercatcher resightings from birds ringed at the Gann
There's a lot to be discovered about this declining species, and any resightings will be very gratefully received (see contact form in the side bar). The Pembrokeshire scheme has a plain orange ring over the metal on the left tarsus and an inscribed orange ring with black digits/letters reading upwards on the right tarsus, as shown below.

A0 about to be released

No comments:

Post a Comment