F. J. Dein D. H. Ellis J. W. Carpenter 1985 <p>Captive propagation of Andean Condors (<i>Vultur gryphus</i>) was initiated at the Patuxent Wildlife Research Center in 1966 in anticipation of the need to apply resulting techniques to the captive breeding of the endangered California Condor (<i>Gymnogyps californianus</i>). This report summarizes the progress made on this Andean Condor breeding and research project, with emphasis on recent fostering/cross-fostering studies. These studies include: (a) fostering eggs/chicks between Andean Condors; (b) fostering of two chicks each to Andean Condor pairs; (c) cross-fostering of a Turkey Vulture (<i>Cathartes aura</i>) to Andean Condors; and (d) cross-fostering an Andean Condor chick to wild California Condors. Implications of these studies for the recovery of the California Condor will be discussed.</p> application/pdf en The Andean condor as a research surrogate for the California condor chapter