Just did a search for "avian exotics vets in the USA" the list was enormous for lack of better words lol, why are people on this forum claiming lack of vets in the USA that could help birds?
I didn't say there were no avian vets. However, the bulk of avian vets treat exotics like psittaciformes, rather than galliformes.
I can only speculate but perhaps it's because the value of a leghorn is a tiny fraction of that of a macaw.
We are blessed in this large metropolitan area to have about 4 good poultry vets, however they're all about an hour drive from me. I'll drive past about a hundred other vets on the way to them that won't or shouldn't treat poultry. Among that hundred are probably 15 avian vets but know nothing about poultry.
There is a huge difference between an avian vet and a good avian vet with poultry experience that can make a difference.
There is a vet in the middle of the metro area that has treated poultry a long time and owns chickens and ducks himself. However he isn't very good and IMHO, it is a waste of time taking a bird to him.
There are about 30 veterinary schools in the US and most used to have a poultry program. That is down to about 5 in the last 15 years or so. There are vast stretches of the country with no vets that are knowledgeable enough to properly care for them.
Most of the vets that graduate specializing in poultry, work for the commercial industry. Poultry veterinarians tend to work in regions of the country with the highest concentration of commercial poultry production. That would be places like the Delmarva peninsula, the GA/ MS/ AL region, Arkansas, WI/MN
If you have a vet near you that is willing to treat poultry and is good at it, you are blessed.