Horseshoe crabs are ancient creatures, having first evolved hundreds of millions of years ago. Since then, they haven’t changed much, but the world around them certainly has. Human activity has taken a toll on horseshoe crabs- for years, people have been harvesting them for use as bait and in medical applications. New Jersey now has a moratorium preventing this from continuing, but their population is still lower than it should be. Luckily, something as simple as flipping a horseshoe crab off of its back can help to restore their numbers. I recently had the privilege of joining Larissa Smith, Senior Wildlife Biologist at CWF, on a trip to the Delaware Bay. In partnership with ReTurn the Favor, she regularly visits beaches that are rife with stranded horseshoe crabs and helps them get back to the water. At the nightly high tide, hundreds of crabs come up to shore to spawn, but when the tide goes out, many of them get stuck on their backs or buried in vegetation, unable to return to their habitats. Rescuing them can be as easy as turning them back onto their legs, but others need a bit more help.
On this day, we started with just a few unfortunate crabs that needed assistance getting off of their backs. We picked them up, flipped them, and off they went. But then, as we turned from the beach to a marshy creek, we were met with hundreds of crabs trapped in the grass. At first, it seemed like we were too late to save them, but as we went along, we found that almost every single one was still alive. So, we wrestled them out of the greenery and carried them back down to the water.
A female horseshoe crab, before and after rescuing
It was a lot of work, but we soon managed to rescue over 100 horseshoe crabs from that section alone. Most of them were females, as evidenced by their large size and pincers. Each one that survived represented a potential new generation of crabs. Female horseshoe crabs can lay around 80 thousand to 100 thousand eggs per year, most of which become food sources for other animals like laughing gulls, which were flocked heavily on the beaches that day. While it’s a bit unfortunate for the crabs, the loss of some of their eggs helps to keep the ecosystem running smoothly.
In just a few hours, we helped 198 horseshoe crabs return to the bay, and we had a lot of fun doing it. The effort to restore the populations of New Jersey’s horseshoe crabs is full of obstacles, but there is also so much hope. Just about anyone can flip an overturned horseshoe crab, and the feeling that comes along with doing so is wonderful. While the horseshoe crabs may not be able to thank us, we can always tell that they greatly appreciate our support.
by Larissa Smith Senior Wildlife Biologist Posted on
photo by Bill Reinert
Shorebird stewards may not wear capes but they are superhero’s to the multitude of shorebirds stopping along the Delaware Bay in the spring. During May, the beaches in New Jersey are an important stopover for these migratory birds who are mainly feeding on the horseshoe crab eggs, deposited during the annual horseshoe crab spawn. The shorebirds, which include the red knot a NJ endangered species, have a short window to reach their ideal weight before leaving on the next half of their journey north to breed. Eight beaches in Cape May County and two in Cumberland County have restricted access during the migration so that the shorebirds can feed undisturbed.
photo by Dom Manalo
Since 2003 Conserve Wildlife Foundation has coordinated the Shorebird Stewards, who help protect the feeding shorebirds by educating the public. This season thirty-one stewards were stationed at beaches between May 10th to May 26th. While most stewards are from New Jersey, we have stewards from Pennsylvania, Delaware and Maryland. Some of the stewards volunteer for a day, while others work the entire season and many return year after year. No matter how often someone has been a steward, they have a made a difference and we have definitely seen a positive change in peoples attitudes over the years. Visitors come from all over to view the shorebirds and horseshoe crabs and one of the main questions the stewards get asked is, “where are the shorebirds today”?
photo by Luke Tan
Some days the beach where the steward is assigned has only few shorebirds, while other days the beach is covered with the feeding birds. While the majority of beach goers have a positive attitude about the beach restrictions, there will always be those that want to go on the beach. While these situation aren’t always pleasant, the stewards are trained to handle them calmly and with education.
by Barbara McKee Eagle Project Volunteer Posted on
H22 May 1st, 2025 photo by B. McKee
I recently headed home from eagle nest checks near the Delaware River. As usual, I was on the lookout for interesting raptor sightings, especially eagles.
I spotted a beautiful sub adult eagle perched along the South Branch River. I pulled over, took out my camera, and got some great photos of this gorgeous bird. I guessed it might be 4 years old because of the amount of white on its head. Could this be one of the eagles from the local nests? We have long suspected that fledglings return to their natal area. We had proof of this while tracking “Duke”, the 2019 banded eagle from Duke Farms, who had a solar tracker backpack attached. He returned frequently to his natal area. While I watched this eagle, it took off and even more exciting, I spotted a green NJ band on its right tarsus!! Unfortunately, when I downloaded the photos, I could not make out the number of this NJ banded eagle.
H22 May 1st, 2025 photo by B. McKee
I sent photos and a description of its location to all the knowledgeable and experienced Eagle Project volunteers in my area of Central NJ. I also notified a couple of local (and always very helpful and supportive) interested supporters in the area who are “unofficially” part of the Eagle Project. I am so thankful that everyone in our group works together for the benefit and protection of our eagles! There is no possessiveness, jealousy, or one-upmanship, just help, support, and encouragement!
H22 photo by S. Neumann
I had confidence that with this group, someone was sure to spot something!! Imagine my absolute surprise and delight when Steve, a talented and devoted local eagle watcher emailed the group that he had found “my” sub adult and gotten a clear image of her green band: H22!! She is one of “mine” which I held at banding in 2022. I was overcome with emotion and excitement! I would never have known that H22 was alive and thriving if not for Steve’s search and photos. Right on cue, Mary Ellen, another Eagle Project volunteer produced emails and photos that I had sent to the group after the 2022 banding showing H/22 as a 6-week-old nestling. How heartwarming it was seeing her again as a nestling!
Rick Mckee 4/16/22 photo by B. McKee
H22 photo by R. McKee
H22 photo by R. McKee
Barb Mckee photo by R. McKee
What a joy it is knowing that she is still living and healthy. I still can’t believe that an eaglet that I held is the same one I saw as a thriving three-year-old. Hopefully she will stick around our area, avoid dangers, find a mate, build a nest, and raise her own eaglets in about 2 years’ time!
by by Christine Alber NJ Eagle Project Volunteer Posted on
Wawayanda Pair, photo by Christine Alber
I monitor a bald eagle nest located in Wawayanda State Park, Sussex County. My heart sank when I was asked to retrieve the carcass of a bald eagle found dead on nearby Highland Lake. The Wawayanda eagles protect a large and rugged territory that includes many smaller ponds, several swamps and other wetlands, and seven lakes, including those in my community. I feared that the dead eagle was one of the Wawayanda pair. Despite their territory’s size, our local eagles are in some ways easy to follow. When the lakes are frozen, as they are this winter, we see few visiting eagles traveling through. Although eagles appear similar, each eagle is really an individual in look and behavior. After watching them closely for years, I’ve learned a lot about the eagles; characteristics, their habits, and their favorite places to perch. Moreover, the male is banded and wears distinctive green and silver ankle bands, which stand out even from a distance, especially with a pair of binoculars.
Wawayanda male Green band D10; photo by Christine Alber
Bald eagles banded in New Jersey receive two separate bands – a silver band from the federal US Fish and Wildlife Service with a unique six-digit ID number and a state green band with a two-digit code etched in silver. Because of its color and the shorter code, the state band can be read from a distance. The male’s bands tell us quite a lot about his history and this nest. He first arrived in 2016. By identifying his green NJ band as D10, I was able to learn that he was banded as a nestling at another Sussex County nest in 2010. Although I didn’t see any battles, it was clear that he and the young (fourth year) female he arrived with were the new pair in town, replacing the eagle pair that we had been seeing for at least five years prior. I didn’t know where their nest was and spent a lot of time looking for it, but I still saw them frequently throughout their territory. I eventually learned their nest is in Wawayanda.
female at Wawayanda; photo by Christine Alber
The female was not banded and therefore harder to track. I don’t know for sure, but I believe the original female from 2016 may have been replaced in 2020. That year, the Wawayanda nest failed– did not fledge any chicks – and a pair of eagles were seen building a new nest near the old one. That failure, the new nest, and their behavior during the 2021 nesting season are why I think a new female took over that year. I was able to see and confirm the male’s bands, so I knew he remained. But the eagles did something I hadn’t really seen in all my years of monitoring – when either eagle was flying into the nest, they would call out, almost as if they were saying, “Hey, it’s me, not a stranger.” They did that throughout the 2021 nesting season, but not in any subsequent season. It was as if they were learning about each other that year and once they really knew each other, never had to do it again.
Wawayanda pair; photo by Christine Alber
This pair has been special to watch. To survive in a territory as large and challenging as landlocked northwestern New Jersey, the eagles must be especially resourceful because their nest-building, egg laying, and even early hatching season takes place when their primary food source (fish) may not be available. And they must be strong enough to repel intruding eagles across many miles to protect their dispersed food sources. When they had chicks in the nest, the male’s primary job was maintaining the security of their territory and providing food, while the female needed to ensure survival of their young. When the male was too involved with security matters, as happened in both 2023 and 2024, the female was hunting, feeding the chicks, and protecting the nest area on her own because the male was in another part of their territory for long stretches. Between 2021 and 2024, this pair fledged eight eaglets. Watching them accomplish this with fine-tuned teamwork and a secure bond has been a real privilege.
male with 2021 fledge ; photo by Christine Alber
When I retrieved the dead eagle and saw it was not banded, I thought first of the fierce Wawayanda female. With the eagle found near her favorite perching spot and few visitors in the area, it seemed likely to be her. In the two weeks after the eagle was found, two weeks that are the heart of the Wawayanda eagles; mating, nesting and egg laying season, the male waited for her by the nest. I watched him for hours, hoping I was wrong, that she would return, and the season would go on as normal. But that didn’t happen and after all of this, I’m as sure as I can be that it was indeed her. Preliminary tests are positive for Highly Pathogenic Avian Influenza (HPAI, or bird flu), which is hitting birds in our state heavily this year.
She was strong and beautiful, and I’ll miss her quite a lot. I’m sure the male spent those few weeks also missing his bonded mate. But the eagles must focus on the future and by his nature he knows he needs a new mate. As he searches for his next partner, there is no guarantee that he will even remain at Wawayanda. He may choose to move on or he may lose control to other eagles who are looking for a nesting area. I do know that there are a lot of prime nesting spaces open in our area and I hope that whoever “loses” at Wawayanda moves down the road and settles in at a nearby spot.
What happened since the female’s body was found demonstrates both the fragility and the resiliency of bald eagles in New Jersey. I have great hope that the Wawayanda nest will continue successfully and look forward to the next chapter.
by Larissa Smith Senior Wildlife Biologist Posted on
Two adorable fluffy chicks have hatched live on the Duke Farms Eagle Cam. There is a pip in the third egg, so the third chick should hatch very soon. Thanks to Duke Farms and staff who host, fund and maintain this cam. The cam is new for the 2025 season and now has audio which allows you to hear the chicks peeping and adults calling. The clarity of the new cam is top notch.
by Larissa Smith Senior Wildlife Biologist Posted on
photo credit: Diane Cook
The New Jersey Annual Bald Eagle Project report has been published by NJDEP Fish & Wildlife’s Endangered and Nongame Species Program and The Conserve Wildlife Foundation of NJ. The NJ bald eagle nesting population continues to increase. Two hundred ninety-three nest sites were monitored, of which, a record 264 were documented to be active (with eggs) and 29 were territorial or “housekeeping” pairs. In total, there were 288 fledglings resulting in a productivity rate of 1.2 young per active nest.
by Larissa Smith Senior Wildlife Biologist Posted on
December 15th, 2024 Clinton pair@ Linda Rapacki
It’s a good time of year to see bald eagles in New Jersey. Many of New Jersey’s resident pairs are back at their nests, getting them ready for the 2025 nesting season. Though the majority of pairs won’t start incubating until February, there are always a few “early bird” pairs that start laying eggs in January.
In addition to the nesting pairs there are immature eagles (those that aren’t yet five years of age and sexually mature) and wintering eagles that come to New Jersey from areas where it’s much colder and the water has frozen. A good spot to find eagles is around water supplies that aren’t frozen solid such as rivers and the Delaware Bay. Here are some photos taken by NJ Eagle Project volunteers in November and December of 2024.
As I write this there are two fluffy little chicks in the Duke Farms nest. They will have an audience of millions of eagle cam viewers watching them as they grow and fledge. As the adult eagles step around the nest, look closely and you will notice that one of them is banded. The male is A/59 and he is twenty-two years old. Twenty-two years ago I began my career with the Conserve Wildlife Foundation working with the New Jersey Eagle Project. In March 2000, A/59 hatched in a nest located in Greenwich, Cumberland County. When he was two weeks of age, he was fostered into a nest along the Rancocas River in Burlington County. The Rancocas pair had failed to produce their own young for a few years and fostering a healthy chick into the nest would help to keep the pairs fidelity to the nest site.
On May 15, 2000, he was banded and a radio transmitter was attached with a harness which was designed to eventually fall off. A/59 fledged on June 3 and was tracked until the transmitter’s signal was last recorded on October 22. You can read more details about the telemetry in the 2000 Bald Eagle Report.
February 7, 2022
In 2000, when he hatched and I started working with eagles there were 25 nesting pairs of eagles that fledged 29 young. Compare that to last year’s numbers of 247 pairs we monitored and 296 young fledged. As the number of eagles increases in New Jersey so does the competition for nest sites. A/59 has been able to defend and hold onto his territory at Duke Farms since 2009.
It’s very interesting to know the history of this eagle. I feel a bond with him since we both started our “eagle” journey at the same time.
E/63 along Hackensack Jan. 28, 2022 photo by Lisa Katz
Each year biologists with NJ Fish & Wildlife’s Endangered and Nongame Species Program & CWF venture out to eagle nests to band the chicks, take blood samples and measurements. The chicks are banded with a green NJ band that has a specific code and a silver federal band. At the time of banding the chicks are approximately six weeks old and have a few weeks left in the nest before they fledge. In 2018, we started to publish the re-sightings in the Annual Eagle Report. In 2022, we have already received quite a few re-sightings. E/63 is one of those eagles.
The 2021 nesting season was another successful one for New Jersey’s bald eagles, with the statewide population remaining stable at 247 nest sites. Of these nests, 222 were active (with eggs) with 296 young produced. Twenty-seven new eagle pairs were found.
