Tiny satellite tracking tags allowed scientists from the British Trust for Ornithology to track five cuckoos on their 5,000 km migration to Africa. The birds have dispersed rather widely:
Four of the birds have already crossed the Sahara; two are in southern Chad, one is in northern Nigeria and the fourth one is in Burkina Faso. One cuckoo is lagging slightly behind the rest and has made it as far as Morocco.
Birds, technology, and science together are simply fascinating.
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We have been following this and you wonder if they will all end up closer to each other after going on such different routes south.