I was reading the post about re sizing and can't find it now. I have mainly used 600 but I will now use 500. I used 600 in my newsletter and got into the habit of using that size, I still have a friendly Chipping sparrow coming to the window for a snack and recently he was coming already loaded, but still took his little suet treat. The nest eagles are in a tree where I photograph them form the open kitchen window.
