I didn't try chicken necks and wings yet. I've decided that I want to stop feeding my cat mostly dry food, which is unnatural and I'm sure unhealthy in the long run. So for a few days now I've been giving him canned cat meat mixed with a bit of raw chicken liver, and just a little bit of dry food. He isn't used to this diet, so I have to slowly make the changes. Hopefully I will eventually get him to eat mainly raw/wet cat food.
I think it's easier with dogs, cats are so fussy about meat, mine doesn't want it anymore if it's been in the food bowl for more than 30 minutes, even if it's canned cat food