Perfect on windows. Gives us a great view to watch them eat. Easy to assembly and easy to clean. Love it!!
After reading the reviews, of which some gave me reason to pause, I purchased two glass window feeders anyway. It is my opinion that those who had problems, did not read the instructions. Thought they knew it all and ended up with their feeder at their feet. First of all you must remove the bracket from the glass bottle. This is tight but can be done. I am sure those who had problems didn't separate the bottle from the bracket, filled the bottle and tried to push it on the window. Mine are fantastic. Read the instructions people, it takes 5 minutes.