Created At: [[2025-01-28]] > A [bird's](https://birds.fandom.com/wiki/Bird "Bird") **supercilium** (plural: supercilia) is the line above each eye that is found as a feature in some bird species. Seemingly looking like an eyebrow, it runs from the base of the bird's bill above the eye, finishing at somewhere towards the back of the head. ## References 1. Contributors to Birds Wiki. (n.d.). _Supercilium_. Fandom; Fandom. Retrieved January 28, 2025, from https://birds.fandom.com/wiki/Supercilium