Boost your martin colony with a helpful, starling resistant shelter option using this S&K Bo Plus Combo Purple Martin Gourd. This durable, plastic gourd provides a fantastic shelter option for purple martins in need of a home, and the unit's lightweight, one-piece body protects these magnificent birds from rain and other outdoor elements while featuring a dark interior to comfort nestlings. The expansive, 9.25" long gourd offers a wealth of interior space for martins to colonize, and a porch is included to easily attach just below the crescent-shaped entry with included hardware, providing 3" of additional, convenient landing space. The entrance's 2.25" wide and 1.25" tall, crescent-shaped design is specifically meant to deter starlings, letting martins find a location of solace without worrying about invasive behavior; a cover for this entrance is also included for when you wish to close the shelter. A helpful drainage hole sits on the bottom of the gourd, ensuring a dry interior, while a spacious access port measures 4" in diameter to allow handy maintenance and viewing. An included, threaded cap covers this port when you wish, and the raised top of the gourd features a predrilled hole to allow you an easy method for hanging this reliable, staunch item from your birding pole. The tough, textured plastic body makes for a durable but lightweight item in your purple martin sanctuary, and the light complexion of the unit keeps it cool during hot summer days. Give purple martins a fantastic and safe place to colonize when you place this Bo Plus Combo Purple Martin Gourd in your garden. Made in the USA.