BirdNote: The Early Bird; Does It Really Get The Worm?
We've all heard that the early bird gets the worm. But research shows that birds dining early and heavily may lower their life expectancy.
Socially dominant birds stay lean (and agile at avoiding predators) during the day, and then stoke up later, before a cold night.
Subordinate birds have to look for food whenever and wherever they can find it, and carry fat on their bodies to hedge against unpredictable rations.