realize that when its
14 degrees out and there's absolutely
NO 
Liquid WATER
add some warm water to the bird bath
they'll eat snow yes....but it chills down their core temperature
SUET right now is more important than SEED !!!
1.00 a square now at walmart
save your meat juices and let them harden in a coffee can
until they can be frozen ....then low-reheat and strain out the meat
scraps and pour it into a mold.... and then re-chill
fat is fat to a freezing Bird.