Five kinds of loons nest in Alaska: common, red-throated, Pacific, arctic, and yellow-billed.
Loons are excellent divers. They can stay underwater more than a minute and have been found caught in fish nets 240 feet (73 m) deep. They propel themselves underwater with their feet, using their wings for turning. Loons feed on small fish but are also known to eat aquatic vegetation, insects, mollusks, and frogs. When alarmed, loons prefer diving for safety to flying.
When you photograph animals in the water look at the background. The loon changed positions several times so i was able to get a wide variety of backgrounds. In the case the simple warm glow from the setting sun gave a nice color to the water. Bingo