February 12, 2014
All that glitters
The birds were swarming our feeders, desperate for a morning feed.
This is an American Tree Sparrow.
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.
The longevity record among banded American Tree Sparrows is 10 years 9 months.
Source - The Cornell Lab of Ornithology.