Seems like any birds prone to that activity would have died out long ago. Anyway, birds have pretty fast metabolisms and burn a ton of energy. They eat throughout the day I believe.
We seek out tasty foods because they are fattening and fatter used to equal more likely to survive. Current abundance of food and sedentary lifestyle results in mass obesity. One wonders if it will correct itself eventually?
This is a side note, I lost track of what you were talking about with that other guy.
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