After spending numerous hours on the web and in the local library and also conferring with the "Research Diva" aka Gypsyheart, I have made an extremely knowledgeable and scientifically-based decision. This is obviously an offspring of the last remaining survivor of a species long thought to be extinct.
I have determined it is of the species "oleocyopsis featherextenderopolis"! This is more commonly known as the "Big-Butted Bumasaur" .They existed gazillions of years ago and it appears the species has at least two remaining survivors. They are believed to have stood at least 6 feet high with small feathered forearms, large stocky hind legs with tiny clawed feet and a 4 foot wide derriere that doesn't develop until the creature obtains the age of 30-40 years. That would explain the lack of a large "bum print" in the photo. They are believed to feed on large quantities of walnuts, peanuts, fermented fruits and would spend the majority of their lives sitting in thick underbrush watching out for everpresent dangers. It is believed they are nocturnal and after the age of 2 months are unable to fly. This indicates the track left in the photo is an extremely young Bumasaur.
I have concluded that the adult must have mated with a "Troglodytes aedon", or a "House Wren".
Obvoiusly the Wren is a male and is watching over his offspring, which would explain the small tracks at the top of the picture. Once the juvenile ceases to fly, the male wren will abandon his duties and the juvenile Bumasaur will find thick underbrush to seek shelter.