Living below zero

Madison is in the middle of at least a two day stretch of below zero temperatures. Last night the low was -18 (fahrenheit), and the high today was -11. One of the things I find amazing during brutally cold stretches like this, is the ability of small creatures to survive.

American Tree Sparrow

It’s incredible to me that a small bird, like this American Tree Sparrow, manages to stay warm enough to get through these bitter cold days and nights. Another one of nature’s miracles.