From BirdNote in the USA:
Boreal Chickadees Stay Home for the Winter
How do they survive the cold?
Boreal Chickadees live in the boreal forest year-round. How do they survive the harsh winter? First, during summer, they cache a great deal of food, both insects and seeds. Then in fall, they put on fresh, heavier plumage. And their feathers are denser than most birds’, creating a comfy down parka. Most impressive? The chickadees lower their body temperature at night from 108 degrees to just 85 degrees, conserving their stores of insulating fat. Hats off to the Boreal Chickadee, a truly rugged bird!
- Boreal Forest (majorbiomes.wordpress.com)
- 5 Boreal Forest Fun Facts! (sierrraaamann.wordpress.com)
- Canadian Boreal Forest Agreement launches new campaign featuring giant boreal map (thegreenpages.ca)
- Ecozones in Sk (katost.wordpress.com)
- Mountain Chickadee (storeroomoftheheart.wordpress.com)
- Image #145 – Carolina Chickadee (aliceswanderland.com)
- Geographers put kids and Canadian boreal forest on the map (metronews.ca)
- Winter residents: Mountain and Black-capped Chickadees (christophermartinphotography.com)