Feeding Frenzy

The birds are busy at the feeders today - probably due to the change in the weather. I've read that chickadees start to shiver when the temperature drops to 60F, so what must it be like for them at 10F with a windchill of -10F? The suet is big draw, its being a big source of energy. I made a new suet feeder to accomodate the pileated woodpecker, and he (it is a he - there's a red moustache) comes about every two weeks. But the feeder is popular with lots of the birds - the other woodpeckers (downys, hairys, red-bellied, and flickers), chickadees, nuthatches, juncoes, finches. About every other day the feeder is emptied. Those little birds can eat a lot of food!