Annual population estimates are not available for pine martens, hen harriers, peregrine falcons and sparrowhawks.
In one case it was particularly dishonestly done, with goshawk eggs put in a sparrowhawk's nest.
There is a need to clip the wings of some birds of prey, particularly the sparrowhawk and the peregrine.
Licences are granted for the taking from the wild of peregrine falcons, sparrowhawks, merlins and golden plovers to use them as birds of falconry.
The creation of infertility in the sparrowhawk led to the near obliteration of the species.
The police have also found gorilla skulls, leopards, sparrowhawks, snowy owls, turtles, tortoises, parrots and a host of primates.
No specific work is presently being funded into predation by sparrowhawks.
Hedgerows give some protection against sparrowhawks.
