vi.(在大自然中)观察、研究野鸟
More than eight million birds were recorded in a single weekend during the Royal Society for the Protection of Birds' Big Garden Birdwatch survey of 270,000 gardens. 这是目前世界上规模最大的一次鸟类观察活动。
Internal view of the birdwatch house 观鸟屋内景
n.野鸟(习性)观察
n.(在大自然中)观察；研究鸟的人
