It will not fit in any other brand of plastic or natural gourd.
It is highly effective at capturing any House Sparrow or European Starling that may start to build a nest in a SuperGourd.
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 zinc-plated hardware. It uses nonbreakable nylon mounting clips (extras included) and comes fully assembled with mounting and operating instructions.