Protect your Purple Martins from owls and hawksWelcome Purple Martins to nest nearby—and block predators, like owls and hawks. Protect your martins in the first place, so they feel safe returning to roost each year. Purple Martins are not aggressive and require built-in protection to shield themselves and their young from predators. This two-piece metal predator guard fits into the pre-punched holes only in the Excluder Purple Martin gourds. No tools needed. This owl guard measures 2-3/4 x 1/4 x 3-1/2 inches tall. Owl predator guard keeps out owls & hawks Protect the Purple Martins nesting in your backyard Features extended metal barrier to prevent owls from entering Fits into the pre-punched holes in the Excluder gourds
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