Posted: 02/10/2014 at 18:56
Broken neck means they will not land much further from the object they hit. They can move a distance with severe injuries and then keel over at a distance - just as Nutcutlet describes.
If you have a local Vet who is interested, you could ask them to do a Post Mortem or perhaps your local Wildlife Trust would undertake a PM or at least an examination of the bird to determine age, general health ( or lack of it in this case ). It all adds to the knowledge of these birds