Given that s/he is looking into the light so the breast may not be quite as big as I think it is, I think Pam and BirdNut may be right and this is indeed Ivy. Particularly since that is one of "his" spots.
Having said that, the bird looks like Trey and Cowboy (they were cousins) as well, so hopefully we can get access to the cameras soon and the bird will cooperate and we can get the Name Game underway!
I repeat, way to go Mother Hen, BirdNut and Pam!!