Egg size, fertility, hatchability, and chick survivability in captive California condors (Gymnogyps californianus)

Abstract 10.1002/zoo.20015.abs California condors are one of the most endangered species native to the mainland United States and are subject of intense effort regarding captive breeding and reintroduction. We analyzed 20 years of California condor egg records from the wild and from three captive propagation facilities for fertility, hatchability, and chick survivability, along with changes […]