Just months after ospreys were removed from New Jersey’s endangered species list in 2025, the state has recorded its worst breeding season in over three decades, with projections for 2026 indicating a further decline. Ben Wurst, senior wildlife biologist with the Conserve Wildlife Foundation of New Jersey and leader of the New Jersey Osprey Project, cited these stark results as cause for concern. This troubling trend is not isolated to New Jersey; similar declines in osprey breeding productivity have also been observed throughout the mid-Atlantic region, particularly in the Chesapeake Bay area.

The Chesapeake Bay, which hosts approximately 10,000 nesting osprey pairs and is recognized as a global stronghold for the species, is witnessing decreased breeding success linked to the dwindling availability of Atlantic menhaden. This fish species plays a critical role at the base of the coastal food web and serves as a key food source for ospreys. Scientists studying the region suggest that shortages of menhaden are adversely affecting osprey reproduction rates.

The decline in osprey populations comes as a significant setback following previous conservation successes. The efforts to improve osprey numbers since their listing as endangered have faced new challenges, highlighting ongoing ecological pressures in coastal and estuarine environments. Researchers continue to monitor the situation closely, aiming to better understand the factors behind the diminished breeding outcomes and to identify effective conservation strategies moving forward.