Small Sea Birds Hold Heat Rather Than Cranking Up the Furnace

Source: ScienceDaily (May 2, 2011) —" A new study offers some clues about how small aquatic birds survive in extremely cold climates. Staying warm is hard work for aquatic birds. Heat loss is around twenty times greater in water than in air, so aquatic birds have to increase their resting metabolism to generate heat on the water. Heat loss is an even greater issue for small birds, so it was assumed that small birds would have to increase their metabolism in water even more than large birds do..."

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