Thank you all! Tammy, I could have disturbed the nest when I was trying to get a picture, although I did not touch the nest, but maybe shook the box somewhat and could have dislodged that piece. The male HOSP (I have caught 4 or 5 different with VanErt) is busy at a different box, so I am keeping fingers, toes, & eye crossed that the blues can get their eggs laid. I have seen the blues at these two back boxes, but it is a distance & obscured by a big tree in between my house & the box. Time will tell. P.S. I do think it works well to let the HOSP keep busy at one box, trapping when ready. and then letting another pair or the male keep on trying! In other words, I truly believe it is necessary to save one box for trapping HOSP!
