Depends.. If its a nearly dead roadkill wabbit, pheasant etc, I'll finish it off with a
swift pull to the neck, as with chickens
- Tip to make this easier.. Cos you want it to be quick for everyone - put the creatures head on ground. Lay a stick across its neck, stand firmly on each end of the stick.. Then grasp, and pull the body up sharply -
Somehow that's easier to do than grabbing and pulling is head.. Eye contact doesn't help
If its a just-dead still warm deer? .. Well that's potential dinner isn't it..
Would be disrespectful not to.
With traumatised song birds that might make it i'll put them somewhere dark, for half a day (safe from cats) to give them a chance to either recover, and be released or to allow them to die peacefully.
Raptors, and rarer stuff, like hedgehogs then it's a trip to the appropriate rescue centre.