2. The Ark's Anniversary by Gerald Durrell

ISBN 0002154986 - William Collins and Sons, 1990

Written after the Jersey Wildlife Trust's 25th anniversary in 1984, this book follows the format of The Stationary Ark. In fact, many of the same anecdotes, from the early years are retold.
A new section detailing the Trust's work to release captive bred endangered species is eye opening. It outlines the difficulties of getting third generation captive bred animals to successfully adapt to their "natural habitat" - assuming it still exists in a viable form.
It also talks about Wildlife Preservation Canada and its American counterpart Wildlife Trust.