American tree sparrow

American tree sparrow, Rondeau Provincial Park, Ontario, Canada, Nov 20, 2021.


A fall/winter bird for us. When they come along with the juncos winter isn't far behind.
Spizelloides arborea
American Tree Sparrows need to take in about 30 percent of their body weight in food and a similar percentage in water each day. A full day's fasting is usually a death sentence. Their body temperature drops and they lose nearly a fifth of their weight in that short time.
source- Cornell Lab of Ornithology.

Comments

Popular posts from this blog

Golden-crowned kinglet.

Connecticut warbler

My Cat is Stranger Than Your Cat