Gryphons

"You remember when we were roasting that little baby gryphon, which was delicious, by the way, but you guys got into an argument about who actually killed it, so then Ray got upset and he was like, 'Hey, I wanna kill the shape-shifter.'"

- Nate Heywood to Garima

Gryphons are magical creatures. After Mallus was freed and his escape opened the door for other banished mystical beings, one known baby gryphon escaped and became a magical fugitive. In an alternate timeline, the same gryphon was killed and eaten by the Custodians of the Chronology.

History
When Malllus was freed from his realm, a baby gryphon also escaped.

In an alternate timeline where Sara Lance was struck by the unicorn in Woodstock, the Custodians of the Chronology once roasted the same baby gryphon during a discussion on who will kill the shape-shifter.