I think we need more bird vets and universal vet care. Took our sick hen who has no appetite, has some diarhea and a crop full of liquid that is not emptying overnight. Vet was nice but really is a cat and dog vet. She said the hens crop felt squishy because it was empty. I think empty crops don't feel like there is liquid in them? She did look at runny green poo under a microscope and thought there were parasite eggs. So we did the worming. Hen temp was very slightly elevated so she wanted to do antibiotic to cover it...which is what people doctors do. Only antibiotic they had was a cat antibiotic so I opted out as hen is old and kidneys liver might be not functioning well.I may be sorry but there was no definitive indication of infection other than hen won't eat much and is slowly declining as well as the small temperature increas . But I did put warm towels around her for tne ride and had used a heating pad about an hour before.