New Jersey Wildlife Telemetry Study Tracks Bald Eagles on Journeys Across Hemisphere
January 2015 is the Month of the Eagle! CWF is kicking off the new year by celebrating all things eagle. Follow us on social media and be sure to check your email (sign up for our list) for weekly stories on these amazing raptors from our own eagle biologist Larissa Smith. Larissa, a wildlife biologist who has been working for Conserve Wildlife Foundation since 2000, coordinates the New Jersey Bald Eagle Monitoring Project.
Conserve Wildlife Foundation of New Jersey releases results of 2014 State Bald Eagle Report
By: Lindsay McNamara, Communications Coordinator
Conserve Wildlife Foundation of New Jersey (CWF) today released the 2014 Bald Eagle Report, highlighting the number of nesting pairs, active nests and nest productivity for the raptors throughout New Jersey with data collected by New Jersey Department of Environmental Protection Division of Fish and Wildlife biologists, CWFNJ biologists and dedicated volunteers.
Two young bald eagles were fitted with GPS tracking devices (wearable backpacks) in Summer 2014 to conduct a telemetry study to better understand raptor behavior. View the complete Bald Eagle Project Report online. ENSP biologists chose one eagle from Atlantic County (a male nicknamed “Nacote”) and one from Cumberland County (a female nicknamed “Millville”) to be tagged in this telemetry study.
Nacote was in Canada until mid-October when he started heading south. He visited Six Flags Great Adventure in December and for the past two weeks, he has been residing in northeast Atlantic County, especially Edwin B. Forsythe National Wildlife Refuge. Millville ventured out to Delaware Bay marshes in late July and back in early August. In mid-September, she crossed the Delaware River into Delaware and then spent most of September along the Chesapeake Bay in Maryland before crossing over to Virginia.
“Tracking these young eagles is giving us insight into where the birds go once they fledge and the type of habitat they are using,” explained Conserve Wildlife Foundation Wildlife Biologist and Volunteer Manager Larissa Smith. “Unfortunately, we recently learned that the female was found dead in Delaware. The first year of life is tough for young eagles as they learn to survive on their own.”
2014 Eagle Report
The federal government removed the bald eagle from its list of Endangered Species in August of 2007, but the bald eagle’s official New Jersey status remains state-endangered for the breeding season and state-threatened for the non-breeding season. The Division of Fish and Wildlife’s Endangered and Nongame Species Program (ENSP) bald eagle recovery efforts, implemented in the early 1980’s, have resulted in a steady recovery of New Jersey’s bald eagle population. ENSP biologists, Conserve Wildlife Foundation of New Jersey staff, and volunteer observers continue to locate and monitor bald eagle nests and territories each year to analyze the state of the population.
2014 Report Highlights
- The population of wintering bald eagles has grown along with the nesting population, especially in the last ten years. This growth reflects increasing populations in NJ and the northeast, as each state’s recovery efforts continue to pay off for eagles.
- This season, 25 new eagle pairs were found.
- The statewide population increased to 156 pairs (including nesting and territorial) in 2014, up from 148 in 2013.
- A total of 156 nest sites were monitored during the nesting season, of which 146 were documented to be active (with eggs), up from 119 last year.
- One hundred fifteen nests (79%) of the 145 known-outcome nests produced 201 young, for a productivity rate of 1.39 young per active and known-outcome nest.
- The Delaware Bay region remained the state’s eagle stronghold, with 43% of all nests located in Cumberland and Salem counties.
- 2014 marked the first year of successful eagle nesting in the Palisades Interstate Park in perhaps 100 years.
The telemetry study, in tandem with the most recent annual eagle report, has been illuminating.
“We are thrilled to have the opportunity to follow these juvenile bald eagles on their forays far from New Jersey,” said David Wheeler, Conserve Wildlife Foundation Executive Director. “With the eagles choosing to fly in completely different directions, it’s a reminder on how much we still have to learn about these fascinating creatures. Yet what is not in doubt is the bald eagle’s continuing recovery from the brink of extinction – thanks largely to the dedicated scientists leading the way.”
For maps of the movements of Nacote, updated regularly, visit our Eagle Project page.
Lindsay McNamara is the Communications Coordinator for Conserve Wildlife Foundation of New Jersey.