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👉 Check Latest PriceLooking for a nest box that lasts longer than a season and actually helps birds thrive? Say hello to the WoodStone® 32mm Oval Hole Nest Box - a sturdy home for House Sparrows, Redstarts, Great Tits, and Tree Sparrows. Designed by birding experts and built to withstand pretty much everything nature (and predators) throw at it, this is the nest box you’ll wish you’d discovered sooner. Unlike wooden alternatives that can rot or warp over time, this box is made from WoodStone® - a clever mix of concrete and wood fibres that delivers serious durability, insulation, and predator resistance. In short: it keeps the birds safe and snug, season after season. Why the oval hole matters The 32mm oval-shaped entrance isn’t just a design quirk. It's a feature birds like House Sparrows and Redstarts actually prefer over traditional round holes. It gives them just the right amount of space, security, and shelter. That’s not opinion - it’s backed by field research across Europe. Built for birds,