From an article in the New York Times, bald eagle populations have been soaring of late. Something that anyone visiting the Sacramento NWR Complex has seen firsthand. When I began visting the refuges some 15 years ago, the sighting of a bald eagle was a rare but amazing event. These days there are almost always multiple eagles on the refuge during the fall/winter migration season. Some are locals but many follow their food source south in the fall, returning north during the early spring. Great read, here is a link to the article on www.nytimes.com:
https://www.nytimes.com/2021/03/25/climate/how-many-bald-eagles-united-states.html?smid=url-share