Why don’t the chickadee’s feet freeze when it is minus 30oF and how can ducks spend the whole day in icy water and not get frostbite?
It seems that birds are never bothered by cold feet. If we were to run outside in the winter with bare feet, we would have frostbitten toes. So why don’t birds need socks?
God has designed birds’ feet with a unique heating system.
Birds have a network of arteries down to their feet. Interwoven in these arteries are the returning veins. This network is called a “wonder net.” The bird’s hot arterial blood (106oF) intertwines with its cool, returning vein blood. As a result, the bird’s feet have a constant pool of warm blood keeping them from becoming dangerously cold, and the blood returning to the main part of the body is preheated.
If evolution is true, how many feet had to freeze off before the bird got it right?
God in His wisdom designed the bird to survive cold winters. So the next time you see a chickadee at your winter bird feeder, be amazed how God solved the problem of cold feet for the chickadee.
(Source: Inspired Evidence – Paul Bartz – Letting God Create Your Day pp. 221)