Delaware River and the Lehigh Valley Duck Migration Forecast

Where Delaware River and the Lehigh Valley is

Delaware River and the Lehigh Valley is drawn from 8 counties in Pennsylvania: Berks, Bucks, Chester, Delaware, Lehigh, Montgomery, Northampton and Philadelphia. Those are the counties its shape on the DuckCast map is built from, so a hunter in any of them reads this region’s score.

When Delaware River and the Lehigh Valley peaks

DuckCast’s season model puts the wood duck peak here around mid October. The timing follows the statewide curve; what differs here is how many birds the model expects, below. That is a modelled typical curve, not a prediction for any single year. The actual push depends on cold fronts and freeze-up upstream, which is what the daily score tracks. Always confirm season dates with the state wildlife agency, linked below.

Which birds the model expects in Delaware River and the Lehigh Valley

In DuckCast’s season model, the species that can score highest in Delaware River and the Lehigh Valley are Canada geese, wood ducks and mallards. Against the state as a whole, it expects more snow geese, gadwall and black ducks in Delaware River and the Lehigh Valley.

Those weights come from harvest records, survey counts and the kind of water, not from a count taken here each season. They cap how high each species’ score can climb; the weather still has to bring the birds.

What DuckCast watches upstream of Delaware River and the Lehigh Valley

5 upstream stations feed this region's freeze line, nearest first: Binghamton, NY, about 125 miles north, Albany, NY, about 185 miles northeast, Montezuma NWR, NY, about 195 miles north, Cape Vincent, NY, about 270 miles north and Plattsburgh, NY, about 320 miles north. When those stations ice over, the score here starts climbing before anything changes in the local sky.

Radar over Delaware River and the Lehigh Valley

Each morning DuckCast reads the night’s NEXRAD data from KDIX, the National Weather Service radar at Fort Dix, about 65 miles east of the region’s weather point. That puts the radar just outside the region, near enough to see birds lifting off and passing close by. Radar sees every bird in the air, not only ducks, so it confirms or questions the score rather than moving it.

Locations stay generalized

Hunter reports for Delaware River and the Lehigh Valley are always shown at the region level. DuckCast never collects or displays exact coordinates, so filing a report here never burns a spot.