Rookery
A gargoyle rookery is a protected area where gargoyle eggs are stored until they hatch. The rookery of the Wyvern Clan was a cave below Castle Wyvern with at least one entrance that leads into the Castle's courtyard.
In 1998, the Pukhan Clan, the Ishimura Clan, the Xanadu Clan, the Mayan Clan, the London Clan, the New Olympus Clan, and the Loch Ness Clan all had eggs that hatched in their rookeries.