There are at least four labs in Texas, maybe one of them could do a necropsy for you?
Peafowl Image Database
BYC Recognition Awards - Educator, Friend, Spirit, & Greeter
Suggestions for a First Aid Kit - Preliminary
Oxytetracycline and Tetracycline Powder Doses
How to Provide Emergency and Supportive Care
Poop Tests - Veterinary Parasitology Laboratory