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Zoologger: Old magpies get wise to freeloading cuckoos
Eurasian magpies often have their nests parasitised by cuckoos, but as they get older they learn to reject the intruders' eggs
Eurasian magpies often have their nests parasitised by cuckoos, but as they get older they learn to reject the intruders' eggs
Source: New Scientist
Posted on: Friday, Jun 20, 2014, 8:15am
Views: 1196
Posted on: Friday, Jun 20, 2014, 8:15am
Views: 1196
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