For the fourth year in a row, the Penn State Office of Physical Plant (OPP) will take on the crows.

According to a university report, these black-feathered flocks, migrating to Happy Valley from New England and Canada, create “unsanitary and unpleasant conditions” around campus (i.e. scattered trash and poop–nothing a Sunday morning hasn’t seen before).

In efforts to move the crows from campus, Penn State’s “crow relocation program” will begin as early as Tuesday Nov. 30 and continue throughout the late fall and winter. This year, OPP will bring back pyrotechnic bangers and screamers, as used in previous years.

These loud noise-makers are just one of the many unique strategies OPP has tried in the past (one of the more creative choices: hanging dead crow look-alikes in trees around North Campus–talk about scare tactics).

To learn more about the crow crisis, check out the video below: