Mark on the render suggests he has flown at high speed directly into the side of the house. Broken neck. Trying to outrun an owl, or maybe a ground based predator - we get foxes and pine marten - or it could have been the neighbours cat
Eldest miklet and I rolled his body onto a towel and moved him to some foliage nearby. Felt like wee were being watched so not expecting the whole body to be there tomorrow.
Nature be tough.