The Scottish SPCA is hoping to trace the owner of the bird after it was discovered in the Torry area on Wednesday.
The Senegal parrot is now in the care of the charity’s staff at its centre in Drumoak, Aberdeenshire, where he has been named Apollo.
Animal care assistant Kyle McWhirr said: “Apollo has plucked out all his feathers other than the ones on his head and wings.
“He also has some bruising on his chest and our vet believes he must have flown into something.
“A lot of birds pluck their feathers due to boredom or stress.
“Senegal parrots aren’t known for speaking much but Apollo is starting to make noises such as squeaks and whistles.
“It’s not uncommon for pet birds to escape through an open door or window, so we think there may be someone looking for Apollo. If no-one comes forward we’ll find him a loving new home.”