Red Knots!
This is what all the fuss is about!
Cooks Beach, NJ

Red knots fly more than 9,000 miles from south to north every spring and repeat the trip in reverse every autumn, making this bird one of the longest-distance migrants in the animal kingdom.

The farthest flung red knot populations spend the winter at the southern tip of South America, in Tierra del Fuego.
Come spring, they’re on their way to the Arctic where they breed during the short Arctic summer.
The Delaware Bay is the final and most critical rest stop for these migratory birds.

They arrive to the Bayshores in early May, famished and half their departure weight after their long journey northward.
Their arrival coincides with the annual horseshoe crab spawning in the Delaware Bay.
During May and June of each year thousands of horseshoe crabs emerge from the depths of the Bay to spawn along the shoreline.
Red knots, relying on masses of tiny, green horseshoe crab eggs on the beach, descend on the Delaware Bayshores and gorge themselves for about one month in preparation for the final leg of their journey to their Arctic breeding grounds.

Imagine hundreds of thousands of shorebirds descending on the beaches to feast on the billions of horseshoe crab eggs waiting for them on the beach—if there ever were a must-see migration this is it.
The Nature Conservancy of New Jersey owns several nature preserves along the Delaware Bay, created specifically to protect crucial stopover habitat for migrating shorebirds like the Red Knot.
The Nature Conservancy ~ http://www.nature.org/ourinitiatives/regions/northamerica/unitedstates/newjersey/explore/top-must-see-migrations-in-new-jersey-the-red-knot.xml