The Western Foundation of Vertebrate Zoology (WFVZ) is a charitable institution based in Camarillo, California, United States. It hosts a natural history collection specializing in eggs and nests of birds. The collection comprises ~225,000 sets of bird eggs representing approximately 4,000 species, including all orders of extant birds; ~20,000 nests; and more than 56,000 bird study skins from around the world. The Western Foundation of Vertebrate Zoology, a 501(c)(3) non-profit charitable corporation, is both a natural history collection specializing in eggs and nests of birds from around the world, and a research and education institution dedicated to bird conservation. The Foundation's collections are among the largest in the world, and its mission is to contribute to the conservation of