Pair Roosting of Nesting Carolina Wrens (Thryothorus ludovicianus)

@inproceedings{Labisky2006PairRO,
  title={Pair Roosting of Nesting Carolina Wrens (Thryothorus ludovicianus)},
  author={Ronald F. Labisky and John E. Arnett},
  year={2006}
}
Abstract Carolina Wrens (Thryothorus ludovicianus), which maintain lifetime pair bonds and year-round territories, huddle in pair or communal roosts during the non-breeding season, particularly during cold winter nights. Pair roosting during the nesting season, however, is not known to occur. Here, we report huddled pair roosting by Carolina Wrens in Florida. The dates of pair roosting took place during nest construction through laying of the first egg (9–20 March 2004), and also on the date… 
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One for all and all for one: the energetic benefits of huddling in endotherms

This is the first attempt to review the various implications of this widely used behavioural strategy, huddling, in animals faced with high heat loss due to a high surface‐to‐volume ratio, poor insulation, or living in cold environments.

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The findings suggest the winter range limits for endotherms is more directly related to food supply, and only indirectly related to temperature, therefore supplemental feeding and other changes in food supply may modify the range shifts predicted from temperature changes alone.

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