bird ringing

The 2019 breeding season; a year to remember for Blackcaps and Blue Tits

Information collected by British Trust for Ornithology volunteer bird ringers and nest recorders provides an insight into how some of our resident and migratory birds fared during the 2019 breeding season.

“Our volunteer ringers and nest recorders contribute thousands of hours each year to collecting these invaluable data.

Subscribe to bird ringing