The bald eagle population along New Jersey's shores is facing a significant threat from avian influenza, commonly known as bird flu. In 2025, this highly contagious virus was responsible for the deaths of half of the 56 bald eagles tested by state officials. This alarming mortality rate underscores the virus's severe impact on these majestic birds.

The state's Department of Environmental Protection (DEP) reported a 5% decline in active bald eagle nests, dropping from a record 264 in 2024 to 251 in 2025. This decrease is likely linked to the avian influenza outbreak, which has been particularly devastating to raptors that feed on infected waterfowl. The virus spreads when eagles consume infected birds, leading to rapid illness and death.

Conservationists are deeply concerned about this trend. The bald eagle, once on the brink of extinction in New Jersey, had made a remarkable recovery over the past four decades, culminating in its removal from the state's endangered species list in early 2025. However, the recent resurgence of avian influenza threatens to reverse these hard-won gains.

Experts emphasize that there is little that conservation agencies can do to prevent the spread of avian influenza in wild bird populations. The DEP urges the public to report any threats to eagle nests, such as human disturbance or habitat destruction within 1,000 feet of the nest, to the DEP at 877-WARNDEP. Additionally, residents are encouraged to support conservation efforts through the New Jersey Endangered Wildlife Fund, which can be contributed to via line 70 on the NJ 1040 income tax return.

The bald eagle's resurgence in New Jersey is a testament to decades of dedicated conservation work. The current avian influenza outbreak serves as a stark reminder of the ongoing challenges these birds face and the importance of continued vigilance and support for their protection.