ABSTRACT A ‘call count’ survey of Water Rails Rallus aquaticus, using broadcast vocalizations to elicit a response, was carried out on Alderney over two consecutive winters. The species was found to be widespread on the island, with 34 birds found in both winters. Most, 62% in each winter, occurred in habitats associated with water, but 38% unexpectedly occupied drier habitat. The survey presents new information on Water Rail abundance, distribution and habitat use on the island, and indicates that the species does not always require access to wet ground in winter.

中文翻译：

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在奥尔德尼岛越冬的 Water Rail Rallus Aquaticus 的声学调查

摘要 连续两个冬天在奥尔德尼岛进行了对 Water Rails Rallus Aquaticus 的“呼叫计数”调查，使用广播发声来引发反应。该物种被发现在岛上广泛分布，在两个冬天都发现了 34 只鸟。大多数（每年冬天 62%）发生在与水相关的栖息地，但 38% 出乎意料地占据了较干燥的栖息地。该调查提供了有关岛上水轨丰度、分布和栖息地使用的新信息，并表明该物种在冬季并不总是需要进入潮湿的地面。