Sentence:  The ‘white-tailed' <WSD>kites</WSD> in the genus "Elanus" (‘<WSD>kite</WSD>') are small, gull-like, grey-and-white hawks with black forewing patches and varying amounts of black on the underwings. 
Meaning of the word marked with <WSD> tags:  A bird of the genus "Elanus", having thin pointed wings, that preys on rodents and hunts by hovering; also, any bird of related genera in the subfamily Elaninae.