My honours project - Hunting success in Ospreys

Hi my name is cate, i'm 20yrs old and looking for information for my project.

I would like to know how to get hold of the fish intake rate on the ospreys at loch garten and whether this is affected by weather conditions, age of bird etc.  Last month i tried to contact the RSPB about this but have had no reply.  Would appreciate any information on this area.

Thanks

Cate