Majestic Bald Eagle Swimming Across A Lake

Filmed this clip this morning. Saw a huge splash and looked. There was a second bald eagle trying to get whatever the one in the water had. At the end of the video you can see it's a black bird of some sort, I think most likely a common gallinule (SW Florida)... Wish I could post the video direct but new DIGG doesn't seem to have that option yet so Threads it is for now