AQUEBOGUE, N.Y. (AP) — Doug Corwin knew there was a problem at his family’s commercial duck farm in Long Island when he spotted scores of dead or lethargic birds during a barn inspection in January.

NEW YORK (AP) — New York’s Long Island was once synonymous with “duck” in the culinary world. Now it may lose its last commercial farm. The avian flu outbreak that has led to the slaughter of millions ...