Here is another style suet feeder that will allow you to enjoy the birds up close. They will come to your window to feed even if you have an indoor cat. The trick is to move slowly to the window so that they will not be startled. Your cat will realize after a few bumps on his head from lunging at the window that he can’t get to the birds and will just watch. Enjoy several species of woodpeckers such as this Hairy woodpecker in the photo.