幻を追う[maboroshiwoou] to pursue an illusion
幻影[genei] phantom
幻覚[genkaku] hallucination
幻覚剤[genkakuzai] hallucinogen
幻姿[genshi] apparition

幻視[genshi] visual hallucination
幻想[gensou] illusions
幻想劇[gensougeki] non-realistic drama
幻像[genzou] phantom

金糸雀[kinshijaku] canary (esp. the island canary, Serinus canaria)
燕雀[enjaku] small birds
黄雀[koujaku] tree sparrow (Passer montanus)
欣喜雀躍[kinkijakuyaku] jump up for joy
孔雀[kujaku] peafowl (inc. the male peacock, female peahen, and young peachick)

孔雀石[kujakuseki] malachite
孔雀妙王[kujakumyouou] Mayuri Vidya-raja
四十雀[shijuukara] great tit (Parus major)
雀の涙[suzumenonamida] drop in the bucket

兀鷹[hagetaka] vulture
鳶が鷹を生む[tonbigatakawoumu] Even plain parents can produce a genius child
脳ある鷹は爪を隠す[nouarutakahatsumewokakusu] a wise man keeps some of his talents in reserve
夜鷹[yotaka] grey nightjar (Caprimulgus indicus)
鷹揚[ouyou] largehearted

鷹匠[takajou] falconer
鷹派[takaha] hawks
鷹狩[takagari] falconry
夜鷹蕎麦[yotakasoba] ambulatory evening vendor of noodles (or the noodles themselves)