Here in Colorado, if you see one of these species of birds, you are likely to see the other. They have a somewhat symbiotic relationship with both using the other to help spot fish. Oftentimes that does create rather calamitous scenes with both types of birds fighting over the same meal, something I have photographed and shown you before.
Yesterday morning, the scene was a good bit calmer. There were some rushes to get to the fish but generally, both seemed to enjoy a quiet spring morning on the plains, circling the lake. For me, I just pulled up a spot on the shoreline and sat and watched, enjoying the quiet.