Cons: hard to install with a gun type cordless drill. Don't beleive them when they claim works for large fowl.
I am now the proud owner of 6 fowl stuff nest boxes that none of my hens can get into. Tried putting one in the box and she fit barely but could not turn around in the box and she ended up backing back out of the box. Not sure if I can modify the fronts to fit something else or not. Would NOT buy again, Based on this next box assuming that the one they market for bantams might work for a pigeon. Great idea BAD BAD BAD BAD for real chickens.