Sentence:  Across the blue sky, a big black bird, a vulture, a <WSD>corbeau</WSD>. It swooped down low and landed, its long, ringed legs trembling as it anchored itself on the branch of a thick-trunked tree. Around it, more <WSD>corbeaux</WSD>, cemetery gargoyles guarding the dead. 
Meaning of the word marked with <WSD> tags:  The black vulture, "Coragyps atratus".