We are sitting here in New England looking at 30" of snow that has fallen over the past 12 hours. Fred has been shoveling on and off, roads have been closed, most folks did not go to work today.
I have been watching a squirrel for the past five minutes jump from tree branch to tree branch. It seems that even these type of weather conditions do not deter them in any way.
Now more than ever it is extremely important to feed the birds. A good source of food to help them stay warm and gives them energy is beef suet. Ask your local butcher, many give this away free.
Thistle seed and safflower seed will attract gold finches, cardinals, nuthatches and chickadees. Try to stay away from sunflower seeds, corn and millet as this attracts birds that will empty your birdfeeder faster than you can blink an eye.