1. Schwalbe   parrot   swallow   stork   owl   Hint Half-n-half Clue   2. Pelikan   sparrow   penguin   pelican   cuckoo   Half-n-half Clue   3. Sperling   sparrow   parrot   crow   dove   Half-n-half Clue   4. Schwan   swan   owl   dove   goose   Half-n-half Clue   5. Storch   penguin   eagle   stork   chicken   Half-n-half Clue   6. Strauß   crow   vulture   ostrich   swan   Half-n-half Clue   7. Taube   dove   duck   flamingo   goose   Half-n-half Clue