“This occurrence probably does represent a northern shift in the migration due to temperature. Historically, there would be some cownose rays that would make it up to Cape Cod or so in small numbers during warm years, but the big schools would terminate the northern migration around Chesapeake Bay. Now, as ocean temperatures warm, the northern migrations of a lot of species are shifting further and further north.”

The Guardian · Drone footage reveals hundreds of cownose rays migrating north off New York