Susan,
Put large enough rocks in, so the water isn't deep for the birds. Think it's suppose to be an inch or two for birds. We don't want them to drown.
Have to remember to look at the local Tractor Supply store to see if they carry the hot pepper suet. I had to give up on the peanut suet, because of squirrels and coons. I've been buying the woodpecker suet there instead and seems that the animals stay off the suet.
Tractor Supply has the best prices (in my town) for bird seed/food.