An update on my turkey-
I took him back to the vets for his check up and the vet gave him 3 more injections of various things. He does seem to be making an improvement. Today he seems to have made a very obvious improvement. When I went to let the pair of them out this morning, he had his head up and was looking around, so I lifted him out of the shed and he walked over to the food and had a little nibble. He even made his usual gobbling sound. I think he could have over excerted himself though because he then stood with his head down again. The crooked neck seems to be straighting out though. When I got him back from the vets this morning I held the food bowl up by his head and he was taking a bit of food. They usually have a raised food bowl, so I hope it helps him eat better.
He has to go back to the vets on Wednesday for a further check up and more injections. The vet said that once he starts to eat a bit better he will give me some baytril to give him orally. He was a bit more feisty when the vet was trying to inject him. Fingers crossed he is on the up.
One thing that did amuse me a bit was the look I got from a couple carrying a turkey out from the vets. I don't think they had ever seen anything like it before.