2dCousinDave wrote: My grandchildren got me one like that for my birthday. You can adjust the dome lower if you see the bigger birds getting in. My bluebirds seem to prefer it. It's been an early Spring here too. My bluebirds haven't made up their minds as to which box they will use. Yesterday I caught her putting straw in both of them. The last shot is looking straight up at a great blue heron, flying lower over our house. Another sign of Spring.