Kathy's High Wall Box 1

Paul in answer to your question only once in 15 years have we had a nest in lower box where one chick only fledged out of 8 we called him Crackers. Think this is due to two factors - height box is approx 8ft above ground level & the dominance of the birds in higher wall box.

I think it is best not to mess around with box and positions at this critical time unless one has too, so I agree leave well alone now.