I ventured back out on the Red Cedar River on the weekend to try to track down the Bald Eagles nesting in the swampy area around Potter Park. On Saturday I only saw one of the eagles sitting on the nest, but it never left the nest and its mate never arrived after three hours of waiting. On Sunday I found one of the eagles perched on a dead tree nearby its nest. It sat there for quite a while and preened itself. Eventually, it flew off toward Potter Park, but circled back around very quickly when a Great Blue Heron flew by the eagles' nest. The eagle chased the heron a bit and the heron finally got the message and flew away. This answered my question about whether the herons would return to their rookery this spring and cohabit the area with eagles. It appears that the two species do not share very well!