The number of natural breeding grounds is declining. Help birds find a suitable nesting and hiding place by hanging a nest box. The Iowa nest box has an entrance opening of 32 mm and is therefore particularly suitable for Tits such as the Great Tit, pied Flycatchers and Nuthatches. The Iowa nest box offers the same quality and functionality as you are used to from all our nest boxes. With the Iowa nesting box you can make an ideal start to get more birds in the garden.  Benefits of the Iowa Nest Box: Sturdy nest box Easy to clean Perfect nest box to start with