Why do wrens roost together (with up to 63 in one nest!)?
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2 Answers
Wrens roost together in large groups for several reasons. One reason is that they are social birds and enjoy the company of other wrens. Roosting together also provides warmth and protection from predators and harsh weather conditions. Additionally, roosting together can help wrens find food more easily, as they can share information about food sources with one another.
Wrens roost in large numbers to stay warm and increase their survival chances in cold weather. They share body heat by huddling closely together and can better defend against predators when in a group. Wren nests are particularly popular as roosting sites as they provide protection and easy access to food sources. Despite their small size, wren nests can host up to 63 individuals.