An oeil-de-boeuf (French: [艙j.d蓹.b艙f]; English: "bull's eye"), also 艙il de b艙uf and sometimes anglicized as ox-eye window, is a relatively small elliptical or circular window, typically for an upper storey, and sometimes set in a roof slope as a dormer, or above a door to let in natural light.
https://en.wikipedia.org/wiki/Eurasian_wren
Volove Oko - also the name of this butterfly
wikimedia
馃搷
Wikipedia
Wikimidia
