rookery

US /ˈrʊk.ɚ.i/
UK /ˈrʊk.ɚ.i/
"rookery" picture
1.

a colony of breeding birds, typically rooks, or their nests

:
The old oak tree was home to a large rookery.
We could hear the cawing from the distant rookery.
2.

a breeding ground for seals or other pinnipeds

:
The rocky island was a large rookery for seals.
Tourists often visit the seal rookery to observe the animals.
3.

a densely populated slum area

:
The novel depicted life in a crowded urban rookery.
The police raided the notorious rookery.