Connie & Judy, Thanks – Yes, I now have 5 baby blues in the nest and mama seems to be doing her brooding duty.
Learning when to set the inbox trap takes some time. I have found the best thing to do when you see a male HOSP claiming the box (and they do this by sitting on top of it, going inside some, back on top, singing – putting nesting material in it) is to keep watch until a female shows up. I will check the nest periodically before any eggs are laid. But I don’t set the trap until I’m sure he has a mate. Only about 2 or 3 times is all these years have I waited a little too long and there was an egg in the nest – I did not like doing what I had to do when this happens – I want to catch him before any eggs.