I wonder why birds always look grumpy. They sure are cute when they're little! This time of year, I spend a bit of time making sure nests aren't growing in my equipment, or where they'll cause issues later. I have a nest in my RV 30 amp electrical box that I cleaned out last year. The birds built it there again, because I didn't close off the half inch gap in the top that is just big enough for the smaller birds to get in. Have to get some screen material or something to seal it off this Winter.