1. Breeding the Indian white-backed vulture Gyps bengalensis;Anon;Avicult. Mag.,1983
2. Reintroduction of the bearded vulture or lammergeier Gypaetus barbatus aureus to the Alps;Anderegg;Int. Zoo Yb.,1984
3. Breeding the king vulture Sarcoramphus papa at Rio de Janeiro zoo;Antas;Int. Zoo Yb.,1980
4. Restoration of the peregrine falcon in the eastern United States;Barclay;Bird Conserv.,1983
5. Successes with birds of prey at the Pretoria Zoo;Barnicoat;Avicult. Mag.,1981