Birders have been flocking to Riverhead since Friday hoping to see the rarest bird spotted in New York in a long time, the common cuckoo.

Birds that end up far from home, like the New York common cuckoo, are known as “vagrants.” They’re fairly common during ...

A common cuckoo, a species native to Europe and Asia, made several recent appearances in Riverhead, N.Y. The birds have been spotted in a handful of places in the lower 48 states, experts said.