a birdwatcher (= a person who watches birds in their natural environment and identifies different species as a hobby) 观鸟者(在自然环境中观察并鉴定鸟类,作为一种爱好) The data was collected by thousands of birders. 这些数据是由成千上万的观鸟者收集的。 The island is a popular spot for birders. 该岛是观鸟者的热门去处。