1. 海鸥   seagull   cuckoo   dove   chicken   Hint Half-n-half Clue   2. 鹦鹉   eagle   ostrich   parrot   swallow   Half-n-half Clue   3. 麻雀   dove   sparrow   cuckoo   quail   Half-n-half Clue   4. 驼鸟   swan   dove   goose   ostrich   Half-n-half Clue   5. 雕   dove   crow   vulture   sparrow   Half-n-half Clue   6. 鸡   dove   pelican   cuckoo   chicken   Half-n-half Clue   7. 火鸟   stork   pelican   flamingo   swallow   Half-n-half Clue