British birds may be learning to use invasive wasps as key food source, research suggests

[PhysOrg]

Biologists have found that blue tits, great tits and other native birds have learnt to peck away the tips of the galls formed by invading oak gall wasps and eat the juicy larvae inside, which are rich in protein. This helps them survive the crucial early spring period, when other food is scarce.

 

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