Model 503 can catch and hold 15 or more starling sized birds at one time. This trap features two funnel trap entry doors and a top release panel door for easy removal. Entry point funnel doors have a 2″ opening and are adjustable by bending the funnel tines to change desired funnel size. When trapping birds make sure to have both seed bait and a water source in or near the trap. Bait the area with seed for several days before introducing the trap then place the trap over the bait area with seed and water inside the trap. This trap measures 36L x 16W x 12H and is constructed of 1″ x 1″ wire mesh.