This hand crafted hanging US Navy Huey Seawolf Helicopter birdhouse is made from cedar. The blades are hand crafted from walnut. The Seawolf Helicopter Attack (Light) Squadron THREE (HAL-3) was the only rapid reaction armed helicopter squadron ever commission in the U.S. Navy. It was established on 1 April 1967 in Vietnam to provide close air support for the Navy’s Game Warden River Patrol Force (a.k.a. Brown Water Navy) in South Vietnam. The need for HAL-3 was demanded by the peculiar nature of guerrilla warfare in Vietnam. This one of a kind naval aviation unit played a major role in the American led campaign to deny Viet Cong use of all important waterways in the Vietnam Delta regions.HAL-3 pilots began flying heavily armed Bell Aviation UH-1B and UH-1M Huey helicopters. Nicked name “SEAWOLVES,” they commenced providing rapid reaction close-air support to host of navy craft, and often provided dedicated armed reconnaissance and fire support to Navy SEALs. Indeed, SEALs and SEAWOLVES became an inseparable and dominating warrior team in areas where they were co-located. They were the best of the best. This helicopter is hand crafted by a US Navy Veteran. This functional birdhouse includes starter kit of nesting material. Easy clean out located on the bottom of the helicopter. Hole size: 1 1/4" Birds: Nuthatches, Wrens, Downy Woodpeckers and Titmouse. Overall dimentions: 21" x 5 1/2" x 9 1/2".