Once they start, it's a hard habit to break!!

This happened outside of the entrance door at the Wildfowl Trusts Washington Wetlands Centre earlier this Spring/Summer So the staff at the Washington Wetlands Centre put another Cigarette Bin with a notice where to put the cigarette’s and not to put cigarette’s in to the cigarette bin where the Blue Tits’s where nesting. Sadly all of the young Blue Tit’s died as the Cigarette Bin was to small for all the young Blue Tit’s as they where found all  on top of each other and sadly all of the young Blue Tits died. Interesting article from the BBC. Thanks for that Mike! I’ve never smoked at any time in all my 72 years!  I thought I should mention that!

I think I first saw that blue tits can (and do) nest in certain designs of cigarette bins, um, possibly up to fifteen years ago (most certainly over ten years ago).

The location of that observation would be in Manchester.

I suspect it is the design that may attract some hole nesters.