Laura, I am so sorry about that. I did realize that but we boat on the Chesapeake Bat and ALL of the ospreys nest on day markers. It keeps the snakes away from their eggs. And they are on every day marker. we pass 4-5 nests coming into some of the creeks. On our creek we have at least four nesting pairs.They are awesome birds but i'll stop posting them. Thanks, Deborah