17 February 2015 Last updated at 18:17
Police said the men seemed to be attempting to kill the birds
Men suspected of trying to kill protected goshawks in Aberdeenshire are being sought after being captured by a special video camera.
RSPB Scotland deployed the camera on Forestry Commission land in May 2014 to monitor a nest at Glenochty, Strathdon.
Footage shows a group of men repeatedly visiting the area. Police said they seemed to be attempting to kill the birds and destroy the nest.
RSPB Scotland is offering £1,000 for information leading to a conviction.
Ian Thomson, head of investigations at RSPB Scotland, said: "This video footage captured by our camera shows what appears to be an illegal incident involving the deliberate targeting of one of our rarest and specially protected birds of prey.
As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.