The first Cuckoo from the British Trust for Ornithology (BTO) Cuckoo Tracking Project to arrive back in the UK reached his breeding grounds in Wales over the weekend, researchers revealed today. The bird, named JAC, arrived near the Welsh town of Llangollen, marking the end of an extraordinary 12,000 km round trip between the UK and the rainforests of central Africa, where JAC and the other BTO Cuckoos spent the winter.
A Cuckoo called Carlton II has just arrived back in England having spent the last ten months travelling to and from the Congo rainforest, becoming the first of the BTO’s satellite tracked cuckoos to return to this country in 2020.
As part of a project to discover what might be driving the decline in UK Cuckoo numbers, the British Trust for Ornithology (BTO) has fitted four of these iconic birds with satellite tags. These tags will enable BTO researchers to follow the Cuckoos as they make their way to the Congo rainforest, where they winter, and back again next spring.