Okay, but how do birds stay warm?

E12. Winter isn’t just “cold” for a bird, it’s a nightly survival math problem: generate enough heat, lose as little as possible, and don’t get eaten while you’re fueling up. In this episode, host Dr. Scott Taylor is joined by Dr. Maria Stager, UMass Amherst, to break down the clever physiology and weird little behaviors that let birds ride out freezing temps, from icy duck feet to “feather puffball” mode to energy-saving torpor.

In this episode, you’ll hear about:

How birds keep their feet from freezing
How feathers and shivering muscles act like a built-in winter jacket
How birds manage energy overnight, including fat, roosting, and torpor

All audio, video, and images in this episode are either original to Okay, But... Birds (© Okay Media, LLC) or used under license/permission from the respective rights holders. Bird media from the Macaulay Library is used courtesy of the Cornell Lab of Ornithology as follows:

Dark-eyed Junco audio contributed by Wil Hershberger, ML94361
Purple Martin audio contributed by Arthur A. Allen, ML8086
Willow Ptarmigan audio contributed by Leonard J. Peyton, ML50031
Common Poorwill audio contributed by Wil Hershberger, ML191125
Snowy Owl audio contributed by Gerrit Vyn, ML138288
Ruffed Grouse audio contributed by Bob McGuire, ML216783
Mallard audio contributed by Mike Andersen, ML136504
Tree Swallow audio contributed by Bob McGuire, ML233306
Black-capped Chickadee audio contributed by Jay McGowan, ML202239
Redpoll (Common) audio contributed by William V. Ward, ML12745

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Avsnitt(26)

Okay, but... boobies!

E25. The blue-footed booby has become an internet personality: cartoon feet, a goofy strut, a name that practically begs to be a punchline. But Scott sat down with Dr. Carlos Zavalaga, Universidad Cie...

4 Juni 34min

Okay, but what about birds that can't fly?

E24. Flight is the thing we associate most with birds, so what does it mean when a lineage gives it up? Dr. Scott Edwards, Harvard, joins Scott to unpack how flightlessness evolves, why it keeps happe...

28 Maj 32min

Okay, but can a bird really cooperate with humans?

E23. Across sub-Saharan Africa, wild birds and people work together to find honey. No taming, no breeding, no domestication… just a partnership thousands of years in the making. Behavioral ecologist D...

21 Maj 33min

Okay, but can birds predict the weather?

E22. Folklore says birds know a storm is coming before we do. Scott talks with Dr. Gunnar Kramer, Iowa State University, about what's actually happening when a tiny warbler decides it's time to fly, o...

14 Maj 34min

Okay, but can birds smell?

E21. We're talking sense and scents with Dr. Danielle Whittaker, Oregon State, and author of The Secret Perfume of Birds, who spent a decade unraveling a 200-year-old myth that started with John James...

7 Maj 34min

Okay, but what can we learn from a drawer of birds?

E20. Less than 1% of what's in a museum is actually on display. So what's happening with the other 99%? Scott talks with Dr. Sushma Reddy, Breckenridge Chair of Ornithology at the Bell Museum and Asso...

23 Apr 35min

Okay, but are bird feeders helping or hurting?

E19. More than 55 million Americans feed birds, and it's not exactly clear the birds asked us to. Dr. Olivia Sanderfoot, Research Scientist and Project Leader of FeederWatch at the Cornell Lab of Orni...

16 Apr 32min

Okay, but what's in a bird's toolbox?

E18. Turns out "bird brain" is less of an insult and more of a compliment. Scott sits down with Dr. Alex Kacelnik, Emeritus Professor at the University of Oxford, to dig into one of the most mind-bend...

9 Apr 32min