Genshin Impact

Emerald Finch

A chirpy little bird, found in nooks and crannies all over Teyvat.
This finch has feathers the color of blue-green gemstones and was, in fact, the very first bird in history to be used by miners as a "caged finch." The reason was that its health status can be easily determined from how glossy its feathers are. As it happens, miners still take finches into the mines with them to this day, though they are no longer particular about the color of the plumage.