Poor bird. It's like I thought... In his condition it's normal that he is not eating on his own. Broken beak and eye injury prevent him from eating and drinking on his own...
I don't have any experience with a similar kind of beak break. I know that in some cases some vets are able to "rebuild" the missing part of beak using material like resin but surely it's very complicated to find one of them.
If you would like to try to look for one, give a look at this link:
Recommended Vets in the United States Avian Veterinarians (Bird Vets) in the USAVet recommendations ...
www.beautyofbirds.com
You could even try to ask on Palomacy and try to give a look at the link:
These veterinarians know birds . . . Avian vet care is a specialty and is very different from the treatment of dogs and cats. Please seek avian vet care for your bird! San Francisco Bay Area Medical Center for Birds … Continue reading →
www.pigeonrescue.org
If you decide to bring him to a vet, please clearly tell him that euthanasia is NOT an option.
Eye looks very bad too. What about the other eye? Does he have sight problems in it or everything seems ok?
Have you given a look at the old thread that I posted? If not, this is a sterile solution for eye wash:
Bausch + Lomb Ophtaxia Singledose 10 x 5ml - Buy this product online, find all information about this product as well as customer reviews. Possible free shipping.
www.cocooncenter.co.uk
I used it for myself (when I had conjunctivitis) and for birds too. Here you can find it in pharmacy. I would try to rinse his eye because it's important to remove any possible debris from it and avoid any risk of infection.
As alternative to the sterile solution, you could make a cup of chamomile tea (without added sugar) and wash the eye with it (check carefully the temperature, it must be slightly warm), you can use an eye dropper.
I'm worried about risk of infection (even broken beak may involve risk of infection). Would you be able to get some medications (antibiotics, pain med)?
Have you carefully checked his body for injuries Sometimes they are difficult to find because hidden by feathers.
Any symptoms of concussion?
I would add the his drinking water a complete vitamin supplement containing iron and even B-complex vitamins, it will help him to replace the lost red cells. He needs to be as strong as possible.
Just to get you an idea I use this one: