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Texas Bluebird Society: Predator guard examples
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Texas Bluebird Society: Protection from livestock
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Texas Bluebird Society: Netting successfully protects against snake
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Texas Bluebird Society: Harry Krueger snake trap
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Texas Bluebird Society: Harry Krueger snake trap
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Texas Bluebird Society: Snake ready to be released from trap
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Texas Bluebird Society: Snake caught in trap
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Texas Bluebird Society: Krueger Snake Trap, made from nursery netting
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Texas Bluebird Society: Krueger Snake Trap, made from nursery netting
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Texas Bluebird Society: tanglefoot