Historical clue formulations

• Like a triceratops — 2026-07-07
• Bull-headed? — 2024-02-25
• Intruded, with "in" — 2023-12-03
• Like Satan and some owls — 2020-12-28
• Like the Greek god Pan — 2017-07-23
• Like some owls — 2015-02-28
• Like bulls' heads — 2006-10-09
• With 97-Down, bird of prey — 2002-12-01
• Bull-like — 1998-06-13