Although with the hard work of birdlovers and ornithologists, the picture is increasingly com plete, there is much we do not know about these creatures that have the whole sky to sail about in. The endangered black-faced spoonbill is precisely one of those who has fallen through the cracks.
雖然地球鳥類圖像，在鳥類學家與觀察者努力下，拼圖已愈具體，但對擁有飛行天賦的鳥族，未知的領域仍然很廣，面臨絕種壓力的黑面琵鷺即是其中的漏網之魚。