This sturdy, basic nesting box is made from pinewood with a waterproof zinc roof. A correct place to hang the box is a quiet and somewhat sheltered place, so not directly in the sun or on the rainy side, with a free flight path for the bird. Autumn is the best time to clean the nest box. – 27mm diameter flight opening – suitable for Blue Tit, Crested Tit, Marsh Tit, Willow Tit, Black Tit – can be opened from the bottom Supplied as 1x nest box