Birding with 6 others, comparing this smaller, light headed loon with many Common Loons it was mixed in with. Was diving constantly. Merlin called a Pacific Loon as well as other birders, but wanted to get thoughts from this group as well. Posting the best shot from a long distance and also a shot showing the suspected loon alongside a Common Loon from an even further distance! This was at East Fork Lake, South Beach east of Cincinnati, OH