Birds without Borders
122 views · Published 20 October 2014 · 6:04 · Indexed 8 October 2026
Channel: GreenTV · 2014 · Pets & Animals
Cuckoos, turtle doves, nightingales and many other summer migrants are among our favourite birds. Naturalist and TV presenter Chris Packham investigates the extensive research and cutting edge science techniques being used in the UK and in Africa to help explain why our summer migrants are returning in fewer numbers each year.
