1. 雌鳥   chick   hen   kingfisher   woodpecker   Hint Half-n-half Clue   2. 雄鶏   kingfisher   pigeon   pheasant   cock   Half-n-half Clue   3. 川蝉　   pigeon   kingfisher   cock   chick   Half-n-half Clue   4. 鳩   chick   cock   kingfisher   pigeon   Half-n-half Clue   5. キジ科の鳥   woodpecker   pigeon   pheasant   kingfisher   Half-n-half Clue   6. 啄木鳥   cock   chick   woodpecker   pheasant   Half-n-half Clue   7. 雛鳥   kingfisher   chick   cock   rooster   Half-n-half Clue