Colour ringed Black-headed Gulls
11th November 2018 | Richard Burness
There is an ongoing programme to ring the Black-headed gulls that are bred in the Berkshire colonies. The process includes colour-ringing. If you should see a colour-ringed Black-headed Gull please note the date, location and ring number and send the details to the County Recorder at records@berksoc.org.uk.