The 'Vault' Purple Martin Vertical Gourd | Troyer's Conley II SREH with Wing Entrapment Guard — Single & 4-Pack

The Experience

Depth is colony safety. At 13 inches from entrance to nest chamber, The Vault places every Purple Martin family beyond the reach of predatory owls and hawks — a passive, permanent architectural defense that operates every hour of every day without landlord intervention. The Conley II starling-resistant tunnel entrance sits just 1/8 inch above the interior tunnel floor, forcing starlings into an anatomically awkward crouch that effectively denies entry while admitting Purple Martins without restriction. A Wing Entrapment Guard molded directly into the tunnel interior eliminates one of the most serious and underappreciated risks in gourd colony management — the spring competition period when martins aggressively contest gourds and birds can become fatally trapped by a wing caught in the entrance. No seams. No joints. No crevices for parasites to breed. An extra-wide traction-ribbed porch. A screw-on cleanout cap for nest checks and end-of-season maintenance. And full sparrow trap compatibility for landlords running active invasive species management programs. This is not a generic plastic gourd. It is a purpose-engineered colony safety system in gourd form.

Scientific Engineering

• 13" Predator-Exclusion Depth: At 13 inches from the Conley II entrance to the nest chamber, The Vault places nesting martins beyond the reach of predatory owls and hawks attempting to access the colony from outside — a passive architectural defense that requires no landlord intervention and operates continuously throughout the breeding season.
• Conley II Starling-Resistant Entrance Tunnel: The rectangular Conley II tunnel entrance measuring 3"W x 1.25"H is positioned just 1/8 inch above the interior tunnel floor — forcing European Starlings into an anatomically difficult stooped posture that effectively denies cavity entry while admitting Purple Martins without restriction.
• Wing Entrapment Guard: A guard molded directly into the interior of the entrance tunnel eliminates one of the most serious risks in gourd colony management. During spring arrival when martins compete aggressively for gourds, birds can become fatally trapped by a wing caught in the SREH entrance. The Wing Entrapment Guard dramatically reduces this risk — protecting the colony during the highest-competition window of the season without any landlord intervention required.
• Interior Traction Tread: The tunnel floor features a traction tread that provides grip for martins during entry and exit — reducing fatigue and supporting confident movement through the tunnel for birds of all experience levels including first-year scouts.
• Extra-Wide Ribbed Porch: A generous porch with ribbed traction surface provides martins with a stable landing platform and allows fledglings to venture out of the entrance and sun themselves safely during the pre-fledge period.
• Seamless One-Piece HDPE Construction: The blow-molded, seamless high-density polyethylene body eliminates joints, crevices, and seams where parasites can hide or breed — maintaining a cleaner nesting environment throughout the active colony season.
• Screw-On Cleanout Cap: A threaded screw-on cap provides secure nest chamber access for nest checks, parasite management, nest replacement, and end-of-season cleanout — without tools and without removing the gourd from the rack.
• Sparrow Trap Compatible: The Vault is compatible with the Troyer-Haskell tunnel trap system for active House Sparrow management — allowing the landlord to convert the gourd entrance into a live capture trap without modifying or removing the gourd from the colony.
• White HDPE Exterior: The opaque white body reflects solar radiation to regulate interior nest chamber temperatures during peak summer heat, protecting nestlings from heat stress during the critical development window.
• UV-Protected Construction: UV inhibitors in the blow-molded plastic body prevent UV degradation and maintain structural and aesthetic integrity across years of direct sun exposure.

Boutique & Conservation Values

• Passive Multi-Threat Colony Defense: The Vault addresses three simultaneous colony threats through architecture alone — predatory owl reach, European Starling entry, and Purple Martin wing entrapment — without requiring landlord intervention, modification, or supplemental hardware.
• Trap Compatibility for Active Management: Full compatibility with the Troyer-Haskell tunnel trap system gives landlords who run active House Sparrow management programs a seamless integration between housing and invasive species control — pair with The Jailbird for a comprehensive colony protection program.
• Heritage Manufacturing: Proudly Made in the USA.

Specifications

• Dimensions: 13"L x 9"W x 11"H
• Entrance Style: Conley II SREH Tunnel
• Entrance Dimensions: 3"W x 1.25"H
• Predator Exclusion Depth: 13" from entrance to nest chamber
• Wing Entrapment Guard: Molded into tunnel interior
• Sparrow Trap Compatible: Yes (trap sold separately)
• Material: Blow-Molded High-Density Polyethylene (HDPE)
• Mounting: Pre-drilled 0.375" hanging hole (hanging rod not included)
• Available Quantities: Single / 4-Pack
• Shipping Weight: 4 lbs. (single) / Est. 16 lbs. (4-pack)
• Country of Origin: Proudly Made in the USA
• ⚠️ Some Assembly Required