This looks to be a Brook trout that Thunder caught. There are two types of trout in the Beaver Creek. There are brook trout and brown trout. In the spring, the eagles go after the sucker fish mostly. they are big and plentiful and they catch them in the shallows as they get ready to spawn. There is another fish called a chub. When they get bigger they can grow spiny horns on their head. The first video is of Thunder while pretending to incubate on the nest. He is a great looking eagle.
Video courtesy of Keith Byer.
Extra video of Thunder bringing an opossum.