Actually it's a pig blind ten months out of the year and a deer blind for two! Tower started out as a 3X3' top. Younger any chair would do. As I got older I wanted a more comfortable chair. I rebuild the box as a 4X4'. Now I have a granddaughter that likes to hunt and one grandson that wants to sit (still young to shoot). I added on to the tower and built the blind 44X72". Open like it is I have had no problems with ringtails or squirrels! I have cut and am painting more plywood to box it in a little more for deer season. I did take pictures of the bird cage build if anyone is interested.

Nice!