In reply to Lankyman:
>With the degree of miniaturisation possible nowadays would it not be possible to fit a webcam to at least some birds?
It might be down to power constraints. These trackers ping a satellite already, so any additional power would drain the battery and add costs. Also, if they are shooting them with a tracker on already, a web cam wont make much difference, I'd have thought.
I'd suggest taking the problem back to the land owners. If a tracked bird of prey goes missing on your estate, then you loose shooting rights for a month. If it happens twice, then no shooting for a year. Also have a carrot. If you look after birds of prey, then some sort of cash incentive is in order.
Realistically, we should just ban grouse shooting on moors.