2023 NJ Bald Eagle Project Report

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 255 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

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.

Continue reading “New Jersey Peregrine Falcons: 50 Years of Recovery”

A New Science Partnership Grows on Long Beach Island

By Todd Pover, Senior Wildlife Biologist

CWF had a busy summer at the Long Beach Island Foundation of the Arts and Sciences (LBIF), having launched a new partnership this year to help strengthen their science programming through a grant from the Osprey Foundation. A number of offerings targeting both adults and kids, highlighted by three week-long science camps for ages 7-9 and 10-12, were developed and led by CWF’s staff. The LBIF facility, with its close proximity to both the ocean and bay, is an ideal location to feature New Jersey’s coastal species and their unique conservation challenges.

Campers watch as summer intern Victoria Rosikiewicz moves a clutch of terrapin eggs to a safe new nest.
Continue reading “A New Science Partnership Grows on Long Beach Island”

Gardening for Terrapins

by Ben Wurst / Senior Wildlife Biologist

Work on this project is done under NJDEP Fish & Wildlife Scientific Collecting Permit SC2023048

When we founded the Great Bay Terrapin Project, our goal was to reduce roadkills of adult female northern diamondback terrapins. This was largely due to personal observations of multiple roadkills during the summer months along roads in Little Egg Harbor Township and past research which accounted for a large number of adults DOR (dead on road). Since 2010, we’ve been able to cut the historic roadkill rate in half, all thanks to our devoted volunteers who patrol area roads and raise awareness for them! This allows adults to grow larger and live longer lives, which helps to ensure their long term survival.

Continue reading “Gardening for Terrapins”

The Double-edged Sword of Reptile and Amphibian Accessibility

by Christine Healy, Wildlife Biologist

Although I spend much of my time thinking about reptiles and amphibians, if you were to ask me if I could be classified as a “herper”, my immediate answer would be no. When I go for hikes, my objective is to reach the summit and take in the view- I’m not generally looking to offroad and go slow. I recently compiled a list, however, of all the herps that I have found during my outdoor adventures this year and was shocked to realize that I’ve encountered 31 species of wild turtles, snakes, frogs, and salamanders. Of those, I had the intention of locating 13 as part of my seasonal field assignments for CWF- the rest were all incidental finds. Moreover, despite the period in question being rather lengthy, it was very easy for me to parse apart which species were really 2023 observations versus some other year.  And I can recall where I was and what the individual was doing in each case.

Christine’s Reptile/Amphibian list for 2023.
Continue reading “The Double-edged Sword of Reptile and Amphibian Accessibility”

Candid Camera: The Role of Game Cameras in American Oystercatcher Monitoring

by Emmy Casper, Wildlife Biologist

This year, CWF embarked on a new, ambitious project to monitor and characterize the previously understudied population of American oystercatchers nesting along the Delaware Bayshore. Since so little is known about this breeding population, we had a lot of ground to cover this first field season, both physically and metaphorically. One of the goals of the project is to characterize threats to oystercatcher nest success on the bayshore, whether it be predators, flooding, or something else entirely. It sounds straightforward, but when you consider the span of the project (35 sites across approximately 45 miles of bayshore), monitoring nesting pairs gets a bit more challenging. That’s where game cameras come in.

.CWF biological technician Caroline Abramowitz deploying a trail camera to monitor an oystercatcher nest.

Game cameras are an extremely useful tool for wildlife monitoring. Cameras deployed at nest sites can provide valuable information about oystercatcher behavior, predator presence, and nest fate (whether the nest hatched or was lost prior to hatching). This is especially important for our Delaware Bay sites, many of which are remote and cannot be monitored as frequently as other locations. Game cameras enhance our in-the-field monitoring and can pinpoint the true cause of nest loss that would otherwise be difficult to determine in the field. Accurate knowledge of nest fate and predator presence is crucial for understanding which factors significantly impact oystercatcher success along the bayshore.

Continue reading “Candid Camera: The Role of Game Cameras in American Oystercatcher Monitoring”

Brood Reduction: New Jersey Osprey Cams Shine Light on Prey Availability

by Ben Wurst, Senior Wildlife Biologist

Depending on where you look and who you talk to, the fate of many osprey nests might bring tears to your eyes. Since a nor’easter impacted the coast with strong onshore winds for several days, young ospreys have been dying of starvation in plain sight. Over the past week, several reports of adults who abandoned their nests with young have been received. This year, weather has impacted the availability of fish and outcomes of nests in the Garden State.

Continue reading “Brood Reduction: New Jersey Osprey Cams Shine Light on Prey Availability”

The Black Market for Terrapins is Thriving

by Ben Wurst, Senior Wildlife Biologist

Kelly Scott, Resource Interpretive Specialist 3, NJ State Park Service holds Bayley before releasing her into the wild.

This past Monday I joined several partners to release a very special northern diamondback terrapin back into the wild. This adult female terrapin had been illegally collected and sold into the black market pet trade. Over the past couple years we have been working on a plan to get her back the wild.

Each of these partners, including Dr. John Wnek, MATES/Project Terrapin, Kelly Scott, NJ State Park Service, Brian Zarate, NJDEP Fish & Wildlife played an important role in her successful release (you can read about each of their roles in a story by Dr. Wnek below). We gathered in the parking lot of a former marina which CWF & NJDEP Fish & Wildlife converted into suitable nesting habitat for female terrapins. For all of us, I think it’s safe to say that it was bittersweet to see her swim off into the brackish water. She was home.

Continue reading “The Black Market for Terrapins is Thriving”

Eaglets Get a New Nest

by: Larissa Smith, CWF Senior Biologist

Princeton eaglets in their new nest; photo by John Heilferty

The Princeton eagle nest collapsed sometime between Friday June 2nd and early Saturday June 3rd. The Princeton pair had two chicks that were ten weeks old and close to fledging. NJ Eagle Project volunteers, Kevin and Karin Buynie monitor this nest and went out as soon as they were notified. When they arrived one chick was perched up in the tree and one was on the ground. The grounded chick was taken to Mercer County Wildlife Center for evaluation. The next day Kevin returned to the nest site and found the second chick now on the ground, so that chick was also captured and taken to MCWC. Both chicks were found to be uninjured and ready to return to the nest. A plan was formed to build a new nest in the tree and renest the two chicks. On June 11th, a group of volunteers and staff from Mercer County Wildlife Center met at the nest site. John Heilferty, retired ENSP Chief, climbed the nest tree and built the nest as volunteers helped to send up the needed materials. Diane Nickerson with the MCWC brought the two chicks, which were banded with Green NJ band H/39 and H/38 and silver federal bands. The chicks were then placed back up in the nest. One of them decided to fledge and the other perched on a branch near the nest. The recently fledged chick did return to the nest that evening and the second chick fledged June 16th. Thank you to Karin and Kevin Buynie, Diane Nickerson and volunteers Daniel and Hope with Mercer County Wildlife, John Heilferty, Kim Korth, and Roger Smith.

Scroll through the slideshow to view photos from the renest.

A Day in the Life of a Shorebird Steward

By: Cara Franceschini, CWF Summer 2023 Intern

In the May 16th blog, Shorebird Stewards On the Bay in May, it’s mentioned that some beaches along the Delaware Bay have restricted access every year from May 7th to June 7th. This is due to the migratory shorebirds that travel thousands of miles and need a place to stop to feed. Our beaches contain excellent food sources to help birds gain weight to continue their journey- horseshoe crab eggs. They are filled
with fat and protein. The Delaware Bay is the largest spawning area for horseshoe crabs in the world!

Now what do the Shorebird Stewards, such as myself, do all day? We monitor our assigned
beaches and educate the public about this incredible phenomenon! My favorite beaches are
Roosevelt Blvd. beach and Cook’s Beach because I see the most active flocks of shorebirds at
these locations.


A group of the infamous Red Knots: Calidris canutus, Semipalmated Sandpipers: Calidrus pusilla,
and Ruddy Turnstones: Arenaria interpres, at the beach on Roosevelt Blvd., photo: C. Franceschini

On a quiet day with not many people to educate, there are many things for us Stewards to do.
Some Stewards read their books, watch movies, listen to music/podcasts, color/paint, take
walks, research, etc. I do all of the above! Since we have a love for these special shorebirds,
most Stewards also birdwatch! It’s a must to bring your binoculars or scope to observe these
beautiful birds. Sometimes, you observe other interesting animals, too!

Another activity to do in the down-time is to flip the spawning Atlantic Horseshoe crabs, Limulus
polyphemus
, back onto their legs so they can crawl back into the bay. When the tide rise, these
crabs get overturned by the waves and have no way of returning back to their feet! Personally,
this is my favorite activity to do. When you return after your “crab walk”, you get to see the
tracks of their feet traveling back into the bay where they belong. Below on the left is a picture of
flipped and rescued crabs: the one on the left is a male who decided to bury himself in the sand
to preserve water until the tide comes back in, and the one on the right is a male who decided to
make the trek back into the bay. When the tide comes in, the horseshoe crabs come up
and begin spawning. Pictured below in the middle is an example of how crowded the beaches
get with these creatures! On the right, is a photo of a tagged crab I found, and reported it to
the US Fish and Wildlife Service so that they can collect data on the tagged crabs.

You can also get involved with helping these critters! “Return the Favor” is an organization
dedicated to conducting beach walks to flip overturned horseshoe crabs on the NJ beaches of the Delaware Bay. You can join public walks that are held by walk leaders or sign up to be a volunteer
and conduct your own walk (until July 15th, 2023 or next year). I am a volunteer and walk leader
and it is one of my favorite things to do. Flipping horseshoe crabs is such a special event
because that means you’re saving those crabs so they can continue to spawn and produce eggs
for the shorebirds. With your help, you could help save hundreds of crabs just by flipping
them over! Of course I had to capture this special moment of me flipping a crab (picture below)!

On these walks, you experience much more than just crabs. You get to see other wildlife that
emerges during dusk or dawn. You can also go on the closed beaches to save the crabs that
can’t be rescued during the day. During my walk, I got to see thousands of horseshoe crab
eggs!