Hole Blues
How big does a blue tit nesting box need to be in diameter and how big the entrance hole.?
Hey hey, keep it clean!
I put up a blue tit box which is cylindrical a couple of years ago and although much interest there has been no sign of nesting. Was wondering, maybe too big or entrance hole too big/small. I have learnt that it must face north (awaiting compass to check) Any advice welcome (no porno idiots please!)
Check out this link. Says the holes should me 25mm.
http://www.beautifulbritain.co.uk/htm/wildlife_gardening/bird_box.htm
http://www.rspb.org.uk/advice/helpingbirds/nestboxes/smallbirds/making.asp
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