KBO has a team of experienced ringers qualified to catch birds with a cannon net. This equipment allows us to catch terns, gulls and waders in good numbers. Our focus is on Sandwich Terns and we have so far caught 10 birds all of which have been colour ringed. We are working closely with the National Trust colour ringing tern chicks on Blakeney Point. We actively search for colour ringed terns in Kartong and some excellent sightings can be seen on the Recoveries and Controls page. The use of the cannon net helps us to sensitise our work to local people.