I would be wary of leaving it for scavengers as it may just attract/encourage predators to come for more live ones.
I have buried birds that died in the past but now I conduct a post mortem(to try to establish cause of death in an ill bird, but also to improve my knowledge and ability to pluck and dress/eviscerate) and then salvage whatever meat/organs are healthy and cook and feed to cats or chickens and bury the remainder for the worms, trees and bacteria to break down and benefit.
I know that sounds heartless and I do love my chickens, but once they are dead then I have an obligation to protect the others and not to waste their body. This seems the best way to do that.
I have buried birds that died in the past but now I conduct a post mortem(to try to establish cause of death in an ill bird, but also to improve my knowledge and ability to pluck and dress/eviscerate) and then salvage whatever meat/organs are healthy and cook and feed to cats or chickens and bury the remainder for the worms, trees and bacteria to break down and benefit.
I know that sounds heartless and I do love my chickens, but once they are dead then I have an obligation to protect the others and not to waste their body. This seems the best way to do that.