He went on to publish a 1995 study in Biological Conservation on the diet and habitat preferences of the Azores bullfinch, which became crucial for the bird's conservation.

1995 年，他在《生物保护》杂志上发表了一项关于亚速尔红腹灰雀的饮食和栖息地偏好的研究，该研究对于这种鸟类的保护至关重要。