Common Cuckoo chick ejects eggs of Reed Warbler out of the nest.David Attenborough's opinion

This is a clip from "RHYTHMS OF NATURE IN THE BARYCZ VALLEY" movie.
You can watch the full movie here: https://www.youtube.com/watch?v=xCexeFsa14U&t=443s
This film tells the story about nature in the Barycz River valley and enormous Milicz ponds. This area is located in the south-western part of Poland (in the middle of Europe). I and my wife made it for 2 years.
Sir David Attenborough, a world-famous BBC nature documentary film maker, after watching the film "Rhythms of Nature in the Barycz Valley" wrote:
"I have viewed Rhythms of Nature with great pleasure.
A lovely place, beautifully filmed"
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Видео Common Cuckoo chick ejects eggs of Reed Warbler out of the nest.David Attenborough's opinion канала Artur Homan