What a beautiful "hotel" for your guests!!! We have the gourds and the first year we had a few come but they have never come back since. We just. Have the run of the mill type birds: chickadees, tufted tit mouse, cardinals, blue jays, mourning doves, brown thrashers, etc. we do have the painted buntings in the early spring as they are indigenous to our area.
Yours are some I've never seen! Great pictures! Where did you get your gourds and what kind if nesting do you use? Maybe if we tried them, ours would come back....