HI I HAVE A 40FT FIR TREE IN THE GARDEN ON WHICH I HAVE PUT UP A CAMERA BOX. ALTHOUGH I HAVE HAD EARLY LOOK-INS NONE HAVE CHOSEN IT TO NEST. I HAVE BEEN TOLD THIS WILL BE BECAUSE THERE ARE SQUIRRELS IN THE AREA AND I THINK THEY HAVE A NEST AT THE TOP OF THE TREE. WOULD THIS THE CASE AS THERE IS NOWHERE ELSE SUITABLE TO PUT THE BOX AND ALTHOUGH THERE HAS BEEN NOTHING NESTING THIS YEAR I WAS HOPING NEXT YEAR WOULD BE DIFFERENT.