Sparrow apartment birdhouse

Because house sparrows are colony breeders who like to live together, we sell this special group nest box; the compartments are separated from each other. The sparrow is struggling in the Netherlands because old Dutch roof tiles are being replaced by increasingly well-fitting roofing without cracks and spaces. Help them out with this beautiful box or place a few in series! Dimensions: lwh: 20x17x51 cm. The 3 entrance holes have a diameter of 3 cm.