Tagged cuckoos complete journey

Tracking devices devices fitted to five cuckoos have revealed the remarkable annual journey of a bird that heralds the arrival of the UK’s spring.The male birds were fitted with the satellite tags in May of 2011 by scientists from the British Trust for Ornithology (BTO).

Two of the birds, Lyster and Chris, arrived in UK this week – the first cuckoos to have their migration mapped. After a 10,000 mile trip, Lyster was seen 10 miles from where he was tagged.Phil Atkinson, head of international research at the BTO, explains how the study could help conserve the cuckoo.

In the UK, the population of the birds has declined by half in the last 20 years

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