The Columbia Rv Tribes are considering the use of falcons on the Columbia River to help protect juvenile salmon on their downstream migration past the dams. The raptors haze the gulls and cormorants away from the dams thus making downstream migration easier on the smolts.

See the link:

https://www.nwcouncil.org/news/2022/06/14/falconry-based-avian-abatement/

And here's a quiz for the birders amongst us: What two birds are featured in the short video?