According to this answer,
Dumbledore knew that a Basilisk was the source of the petrifactions in the school.
My simple question
If we take every fact mentioned in the series to be true, then the mere crowing of a rooster is fatal to the Basilisk.
.. And the Basilisk flees only from the crowing of the rooster, which is fatal to it.
The Chamber of Secrets
This was in a library book.
So why didn't he station hundreds of roosters in the school and see to their protection?
If a couple of roosters near Hagrid were a threat, surely hundreds in the school would get the job done? Even Riddle would find it hard to eliminate so many of them quicky enough to save the Basilisk.
Hope my question is the first to raise the issue, and not a duplicate!
EDIT: I've taken the quoted quote to mean that the crowing of the rooster has the potential to kill the Basilisk if it doesn't get away quickly enough. Feel free to correct me if my interpretation is wrong!