roe deer
麕 refers specifically to the roe deer, a small Eurasian deer species. The meaning is narrow and zoological, without broader abstract extensions.
麕 combines the deer radical 鹿 with 囷, which likely contributes a phonetic element. The character is a specific zoological term for the roe deer.
The deer radical 鹿 surrounds 囷, which looks like a granary. Picture a roe deer hiding inside a granary, its small size fitting neatly within.
For キン, imagine a roe deer with a keen sense of smell: keen -> キン, and the deer uses its keen nose to find food.