I saw this on Youtube. Early birds; they eat poisonous berries.
Asker: Theo, 54 years old

Answer
Dear Theo,
The bird is a starling. Unlike the rest of the plant, the red fleshy part (arillus) of the yew is not poisonous. The seeds they encase are, but they leave the bird undigested.
Regards,
Quinten
Answered by
Bafort Quinten
evolution biology
university of Ghent
http://www.ugent.be
.