How Small Birds Survive a Winter Night

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How Small Birds Survive a Winter Night

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On a freezing winter night, a bird that weighs less than an ounce has to make it to morning. Here's how small birds do it, from fluffed feathers and shivering to huddling together and letting their bodies cool down on purpose. Inside this episode: - Fluffing Up - Shivering for Heat - Roosting Together - Cooling Down on Purpose - Fuel for the Night Sources include the references linked below. Sources and further reading: - [University of Alaska Fairbanks, Finding a midwinter night's roost](https://uaf.edu/news/archives/news-archives-2010-2021/finding-a-midwinter-nights-roost.php) - [Heinrich, How do birds survive the winter? Cornell Lab, All About Birds](https://www.allaboutbirds.org/news/how-do-birds-survive-the-winter/) - [Brodin, Nilsson & Nord 2017, Adaptive temperature regulation in the little bird in winter, Oecologia](https://pmc.ncbi.nlm.nih.gov/articles/PMC5596050/) - [Cooper 1999, The thermal and energetic significance of cavity roosting, The Condor](https://academic.oup.com/condor/article/101/4/863-866/5124258) - [Hatchwell et al. 2009, Huddling in long-tailed tits, Functional Ecology](https://eprints.lancs.ac.uk/id/eprint/63241/) This episode is a researched science explainer. Evidence and interpretations can change as new discoveries are made; material uncertainty is stated in context. Follow Birds Beyond the Birdsong for more episodes.

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