Was developed by the Purple Martin Conservation Association. Note that it is heavy!
A 10", one piece moulded gourd with a moulded-in, threaded access port. This port is covered by a threaded cap to allow easy cleaning, viewing and monitoring. Also has a moulded rain canopy which can double as a perching platform. The Super Gourd weighs approximately 29 ounces, has six drain holes and is made of white (sun-reflecting), opaque, high density polethylene plastic with UV inhibitors for a long life.
35.5 x 25cm diameter (14 x 10in. diameter)
[SG] 1 Super Gourd - $35.99
[SG4] 4 Pack Super Gourds - $119.96
[SG8] 8 Pack of Super Gourds - $224.00
[SGL] Super Gourd Lids (replacement) - $3.00