thumb|Illumination of 13th century manuscript Hercinia is a legendary bird with glowing feathers that inhabited the Hercynian Forest of ancient Germany.
thumb|Illumination of 13th century manuscript Hercinia is a legendary bird with glowing feathers that inhabited the Hercynian Forest of ancient Germany.
==Description== The hercinia is depicted in Medieval bestiaries and was recorded in the 1st century by Pliny the Elder, who wrote, “In the Hercynian Forest, in Germany, we hear of a singular kind of bird, the feathers of which shine at night like fire.” Writing in the 7th century, Isidore of Seville notes, "Their feathers sparkle so much in the shade that, however dark the night is with thick shadows, these feathers, when placed on the ground, give off light that helps to mark the way, and the sign of the glittering feathers makes clear the direction of the path."
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).