In June last year we colour ringed 100+ nestling Black Headed Gulls on one of the Belvide islands. So far we have had reports of 9 of those birds from around England and Ireland--see our 2018 Belvide ringing report on the WMBC website.
We struck gold today however when a chap called Eduardo Blanco sent me a picture of the legs of a BHG carrying red colour ring 27F2--in the centre of MADRID !
It's becoming clear for this and similar projects that these birds disperse much further than we may have expected.
We are looking forward to getting more reports from distance as we then start to look forward to Spring to see how many/if our young birds return to their nest site to breed; or do they spread out to ensure a mix of genes in a wide gene pool?
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