Breeding birds in captivity may alter their wing shapes and reduce post-release survival chances

Research into critically endangered orange-bellied parrot finds 1mm difference in length of one feather is enough to reduce survival rate by 2.7 times

Breeding in captivity can alter birds’ wing shapes, reducing their chances of surviving migratory flights when they are released to the wild, new research suggests.

A study of the critically endangered orange-bellied parrot has found that in captive-bred birds, those with altered wing shapes had a survival rate 2.7 times lower than those born with wings close to an ideal “wild type” wing.

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Date:	Mar. 18, 2023 3:00 PM ET
Link:	More at "The Guardian"
Source:	The Guardian - theguardian.com
Category:	World

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