gullery

plural gulleries

1. archaiccountableuncountableAn act, or the practice, of gulling i.e. trickery, cheating or fraud.
2. countableuncountableA colony of gulls.

   Gulls seem to fear the great skua less than the Arctic one, and will sometimes mob and molest it. A single pair that had nested on the outskirts of a gullery were a good deal subject to this annoyance.

   1901, Edmund Selous, Bird Watching, page 128