Quail on the Window Sill

Every spring, a quail couple will discuss the possibility of building a nest on the window sill of my home office. They walk back and forth, tapping on the window, and squeaking their comments about the pros and cons of the home site. Pros: 1) it's off the ground behind the security bars and 2) vines partially obscure the sill. Apparent cons: 1) when the chicks are born and get adventurous, the three foot fall to the ground may be hazardous to their health, 2) then there's that large animal with the camera on the other side of the window and 3) this year, there also seems to be a cat in residence. They always decide against the nest site, but it's fun to watch them up close.