Darin Welker, 36, is an Army vet who suffers from depression and post-traumatic stress disorder.
What helps him get by? His 14 pet "therapy ducks" who live in a penned-in area of his backyard, next to a kiddie pool for swimming.
When serving, Welker suffered a major back injury that required surgery in 2012. The V.A. paid for the surgery but wouldn't pay for