Designed for use in the SuperGourd and WILL work with Excluder gourd once you remove the interior porch. We can NOT guarantee that it will fit in any other brand of plastic or natural purple martin gourd. It is highly effective at capturing any House Sparrow or European Starling that may start to build nests in a round or crescent entrance SuperGourd or Excluder gourd
It features an easy snap-in, snap-out installation that does not require tools and will not damage the gourd. It has a high-visibility, powder-coated shutter so you can tell from a distance if the trap is sprung. It is extremely well made, with an aluminum body and stainless steel hardware. It uses nonbreakable, nylon mounting clips (extras included), and comes fully assembled with mounting and operating instructions.