Abatement is the act of using a raptor to pursue (and in some cases to take) depredating birds or other wildlife to mitigate damage. The Wisconsin Falconers Association occasionally receives inquiries regarding flying raptors to scare away nuisance birds at apartments, resorts, landfills, etc. In order to be successful in repelling nuisance birds, raptors must be flown for several hours a day, daily, for anywhere from two weeks to several months. 

Abatement requires an additional license issued by the US Fish and Wildlife Service only to Master Falconers. According to federal regulations: Falconers may conduct abatement-like activities in accordance with your State Falconry permit if they are carried out in the context of practicing falconry (hunting or training the raptor to hunt) and if no payment is received. At this time the club is not aware of any Wisconsin-based abatement business. If you are interested in hiring an out-of-state business, we suggest searching the internet for raptor abatement services.

https://www.n-a-f-a.com/page/Abate?&hhsearchterms=%22abatement%22