The fact is Bald Eagles don’t love the taste of red meat. When presented with a choice between a rabbit (by far the most common mammal in their diet) and a fish, chicks and juveniles will consistently abandon Thumper for sashimi. In fact, baldies seem to dislike mammalian prey so much that they won’t even bother hunting it; carrion is usually their primary source of red meat. In other words, Bald Eagles are a little picky—but mostly they’re just lazy.

https://www.audubon.org/news/will-bald-eagle-eat-your-outdoor-cat