Nature House Owl Guard for Mini-Castle Martin House bird house kits for children to build This research found that purple

This research found that purple martins have higher fledgling rates in large

Note: This case pack contains 12 of the S&K Natural Gourd Accessory Kits

and a book makes it easy to establish housing for these birds

This robust

25” diameter entrance holes are ideally sized for hosting purple martins

Nature House Owl Guard for Mini-Castle Martin House bird house kits for children to build This research found that purplePrevent owls and hawks from preying on your martins with this Nature House Owl Guard for Nature House Mini Castle Martin House. This durable, galvanized steel guard surrounds your existing Nature House Mini Castle Safety System house (not included), and its unique, grid design stops flying predators from reaching the martin nests. The openings, aligned with the nest entries, are slightly enlarged to 2. 25" in diameter, and allow martins a safe and