Content is now organized by game version and source

This link potentially matches multiple versions of "Giant Owl":

• Giant Owl (System Reference Document 5.1)

  CR 1/4 · Beast (Large)

• Giant Owl (Monstrous Menagerie)

  CR 1/4 · Beast (Large)

• Giant Owl (System Reference Document 5.2)

  CR 1/4 · Celestial (Large)