Give house martins a helping hand with this expertly designed double nest box, perfect for attracting these much-loved summer visitors to your home or outbuildings. House martins are famous for their white rumps and mud-built nests under the eaves, often returning year after year to the same site. With suitable nesting places in decline, these artificial cups provide a safe and reliable alternative, helping support local populations. Each nest cup is shaped to closely mimic natural mud nests and is mounted on a sturdy backboard made from responsibly sourced fsc -certified plywood. The double design is ideal for encouraging colonies, as house martins typically nest in small groups. Key features: * perfect for colonies: double cup design encourages several pairs to nest together, just as they do in the wild. * Durable and safe: made from high-quality, fsc plywood and robust nest cups, built to withstand british weather. * Easy to install: simply fix the backboard underneath