We would take our childhood parakeets to the Vet to have their nails trimmed. You may be able to find a veterinarian near you who will trim parakeet nails. They are so skilled they are usually able to do it quickly causing little stress. Good luck!
Thank you for the suggestions. I actually had given more info in the details when I posted that I am doing all of these. This isn’t a typical housebreaking issue but more of a compulsion to eat stool. The issue of eliminating in his crate began AFTER I restricted him from eating poo outside. In the past year alone I have fostered 30 puppies, all were well on their way to being housetrained when they were adopted. As a board member of a local rescue and seasoned foster I provide support to adoptive families on the subject of house training. My approach to house training is to set a dog up for success eliminating the possibility for accidents and rewarding appropriate elimination. I vary my method according to the dog as not all dogs respond to the same method. I have had great success with training dogs who have come from horrendous living conditions, spending months in their own waste.