Tuesday 6th December comments: Always learning, always something new. Even as we approach the end of the year we are still learning new and interesting facts about the birdlife which frequents the Isle of May.
Seal researcher Kelly Robinson photographed an immature Great Black-backed Gull feeding on some seal placenta and noted a colour ring on its leg (black with digits JC 719). As mentioned in previous blog posts we run a colour-ringing scheme of these Gulls on the island but we use yellow as the main colour and this individual was sporting a black ring (you can just see it in the photo).
After some detection work and help from the British Trust for Ornithology (BTO) it was discovered the bird was ringed as a chick this summer in south-west Norway! It just goes to show the value of such schemes and the discoveries you can make even in deepest darkest winter. As for the Gull I’m sure it’ll be happy tucking into its Christmas dinner and thanks for Kelly for supplying the information.