House martins and swallows typically build nests under the eaves of buildings using mud and grass. These magnificent birds migrate from africa to europe in spring and quickly begin preparations for their busy breeding season. By june, the season is usually well underway. Sadly, house martins and swallows are facing a shortage of suitable nesting sites, as many old buildings are being demolished or updated. Thankfully, they will happily use a special open nest box in an enclosed area, such as a porch or outbuilding. It is a delight to watch house martins and swallows raise their broods, and by installing this dropping board, you can sit back and enjoy this magical season without worrying about the mess. Position the dropping board approximately 60 cm below the nest box. We offer a range of specialist nest boxes for house martins and swallows.