Conserve Wildlife Blog

Archive for the ‘Raptors’ Category

2023 NJ Bald Eagle Project Report

Thursday, January 18th, 2024

by Larissa Smith, Senior Wildlife Biologist

The NJDEP Fish & Wildlife’s Endangered and Nongame Species Program and Conserve Wildlife Foundation of New Jersey have published the New Jersey Bald Eagle Project, 2023. The NJ eagle population continues to thrive. During the 2023 nesting season, 286 nest sites were monitored of these 155 pairs were active (laid eggs). This is a slight increase of 5 active nests from 2022. This season 309 young eagles were documented to have fledged, this number is a down from 2022’s high of 335 young fledged. The productivity rate of 1.28 young per active nest is above the 1.0 young per nest needed for population maintenance.

Fifty-four nest failed to fledge young this season, this means that the pair laid eggs, but the eggs failed to hatch or the chicks did not make it to fledging. There could be many reasons for nest failure including weather events, nest/tree collapse, disturbance by humans or intruder eagles. The NJ eagle population is doing well but they still need monitoring and protection. There is constant pressure for development in NJ and if we don’t know about a nest we can’t help to protect it. Eagles are nesting in all 21 NJ counties, from remote marshes in southern New Jersey to suburban neighborhoods. How the ENSP and CWF protects these nests is on a nest by nest basis. We couldn’t do this without the dedicated group of 150 NJ Eagle Project volunteers who not only monitor the eagle nests, but help minimize disturbance to nests by educating the public about NJ’s eagle population.

Forsythe NWR, eagles fight over prey, 12/16/23 photo by Rich Nicol

The 2024 NJ Bald Eagle season is underway with eight pairs currently incubating. A great way to see what goes on in an eagles nest is to watch the Duke Farms eagle cam. The female should be laying the first egg any day now.

We’d like to thank all the volunteers, sponsors, donors and friends of the NJ Eagle Project

New Jersey Peregrine Falcons: 50 Years of Recovery

Tuesday, January 16th, 2024

by Ben Wurst / Senior Wildlife Biologist

Two peregrine falcon eyases after being banded at a nest in southern New Jersey.

It’s no surprise to hear that peregrine falcons have made a remarkable recovery since being extirpated from New Jersey in the mid-1960s. From the cliffs of the Palisades to bridges and buildings in our urban areas and along our entire coast, peregrines can be seen at many locations throughout the state. Today the population has been holding steady with 40 (known) pairs and at least 35 active nests over the last couple years. This is due to protection through the Endangered Species Conservation Act, where biologists worked tirelessly to jumpstart their recovery efforts by “hacking” young falcons and the banning of harmful pollutants, like DDT.

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NJ Eagle Cams: Ready For The 2024 Nesting Season

Friday, December 8th, 2023

by: Senior Biologist, Larissa Smith

Three Bridges Eagle Cam

The Three Bridges eagle cam went live for the 2024 nesting season on December 1st. A pair of eagles made an appearance that morning. The Three Bridges nesting platform was used by eagles in 2021, when they successfully raised two young. During the 2022 and 2023 nesting seasons, the pair were seen at the nest platform but ended up using a nest in a tree. We will see if the pair decides to use the nest platform this season. For now we believe that the Three Bridges pairs territory is both the nest tree and platform. As the numbers of nesting Bald Eagles continues to increase New Jersey there is the possibility that a second eagle pair could nest at the platform. Last nesting season there was lots of eagle action at the tower, eagles of all ages stopped by along with many different avian species. A pair of Osprey’s took interest in the nest platform but didn’t end up laying eggs. An American Kestrel perched at the platform on the first day the cam was live. It’ll be interesting to see what activity occurs at the tower this season.

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Birds and Powerlines

Tuesday, November 14th, 2023

Larissa Smith: CWF Senior Biologist,

Nesting pair of eagles near Atlantic City@ Bill Reinert

Last week I attended the APLIC (Avian Powerline Interaction Committee) workshop hosted by PSE&G. APLIC is a group that leads the electric utility industry in protecting avian resources while enhancing reliable energy delivery. We all use electricity and power lines are needed to distribute the power to where it’s needed. Powerlines and transmission towers have become a normal part of the landscape and we don’t pay much attention until our power goes out. All different species of birds, from bald eagles to starlings, interact with powerlines, poles and towers daily, including perching and nesting on them.

With these interactions come issues, birds can be injured or die from electrocution and collisions which can cause power outages. Nests on poles and transmission towers can create problems with outages and fires as well as risk to chicks or adults. One part of my job is keep track of all reported injured or dead bald eagles in New Jersey. In 2023 there have been fifteen confirmed eagle electrocutions. Any recoveries that are a suspected electrocution or collision with a powerline are reported to the appropriate utility company. CWF and the NJ ENSP have a good relationship with the Utility companies in New Jersey. Each utility company has biologists that work on environmental issues including avian. There are a whole set of issues that they need to be taken into consideration when deciding how best to minimize negative avian interactions. The solutions require time, money and often scheduled power outages. When an area of lines or poles are identified as a risk for bird electrocution/collision, they are made as avian safe as possible. When new distribution lines are rebuilt, avian issues are taken into consideration and the appropriate measures are implemented.

There are quite a few bald eagles and ospreys that nest on poles and transmission towers throughout New Jersey. Most of these nests don’t cause problems, but if they need to be removed, the utility company works to obtain the proper permits and replace the nest with a new nesting structure in close vicinity. One example is the Three Bridges eagle nest. PSE&G needed to replace the entire distribution line where an eagle pair had been nesting on one of the towers for years. After much planning and coordination the nest was removed and placed on a nest platform installed on one of the new towers.

I certainly learned a lot at the workshop and gained a new appreciation for everything that goes into keeping our electricity flowing at the flick of a switch and making sure that avian species stay safe at the same time.

To learn more:

Barn Owls in Monmouth County

Thursday, October 12th, 2023

by: Larissa Smith, CWF Senior Biologist

photo by Herb Houghton

Barn Owls (Tyto alba) are one of the most widespread avian species in the world. Despite this impressive distribution, their numbers have been decreasing in parts of their range, and New Jersey is no exception. The barn owl population in New Jersey is in decline due to habitat loss associated with urban sprawl and development of former agricultural lands. Little is known about the Barn Owl population in central New Jersey. Through a grant from the Monmouth Audubon Society, Conserve Wildlife Foundation of New Jersey is partnering with Monmouth County Park System and the New Jersey State Park to construct, install and monitor three barn owl boxes. By providing suitable nest site opportunities we can potentially boost the barn owl population locally within Monmouth County as well as regionally as fledglings disperse to find their own nesting areas.

The first step of the project has been completed. CWF biologist Christine Healy and her Father Jim Healy have constructed three nest boxes that are ready for installation.


Would you like to learn more about the elusive Barn Owl, support the CWF Barn Owl Project and have a fun family night? Join us at Howls for Owls, at the Screamin’ Hill Brewing.

We Hope to see you there. This outdoor event will be cancelled for bad weather, so please stay updated on our website.