1. 洞   hive   stable   hole   cave   Hint Half-n-half Clue   2. 狗窝   cave   shed   burrow   kennel   Half-n-half Clue   3. 笼子   shed   aviary   cage   burrow   Half-n-half Clue   4. 孔   stable   cage   hole   hive   Half-n-half Clue   5. 棚子   cave   shed   nest   aviary   Half-n-half Clue   6. 巢   cage   nest   hive   cave   Half-n-half Clue   7. 鸟舍   aviary   cave   shed   hive   Half-n-half Clue