Teatching jays to avoid eating murrelet-eggs

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Article about teatching wild jays NOT to eat Murrelet-eggs ! :
With Vomit, Scientists Try to Save Rare Marbled Murrelet| Endangered Species | LiveScience

 

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And a video about the same subject :
Biologists Hope To Save Mysterious Marbled Murrelet | Video | LiveScience

 

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Trying to unsolve the mystery of the Marbled murrelet :

The Unsolved Mystery of the Marbled Murrelet | Hakai Magazine