Here in central Texas, even though we're experiencing a colder winter than usual, I've noticed an unusual increase in the number and types of birds in the area. I surmise this is due to the even harsher weather conditions in the north..... It currently sounds like a jungle around here.

Good points concerning deer, CJBS2003. I might add, that it can also be a danger to humans, to feed deer in a way that the deer can associate the food with humans, particularly during rut.