by: Larissa Smith, biologist
“Jersey Girl” is a NJ banded eagle (B/64). She was reported to us in 2014 by Linda Oughton, who has been keeping track of her and her mate since 2010. They nest is in Montgomery County, Pennsylvania. B/64 was banded in 2004 at a nest in Cumberland County NJ, located along the Cohansey River. ‘Jersey Girl” is seventeen years old.
by: Larissa Smith, CWF Wildlife Biologist
I started writing the Three Bridges blog series at the end of November 2020. At the time we had no idea if the eagle pair would return to the newly installed nest box, nest somewhere else or nest at all this season. In the last blog post Part 5, the eggs had hatched. Since that last blog a lot has happened at the nest. On April 2nd nest monitors determined that hatching was occurring and on April 14th it was determined that there were two chicks. On May 14th, the nest was visited by PSE&G and NJ Division of Fish and Wildlife, Endangered and Nongame Species Program. The chicks were banded with silver federal bands and green NJ bands H/04 and H/05. Both chicks were determined to be males. During the nest visit the camera was fixed and a whole new close up view of the nest appeared.
Cam viewers got to watch the young eagles as they learned to feed themselves and started preparing their wing muscles for flight, by flapping and hopping around the nest. When eagles are nesting in a tree the young will perch on branches which is called “branching”. In this case the chicks don’t have any branches, so the perches were built as substitute branches. Nest monitor, Mary Ellen Hill, got the below screen shot of one of the chicks perched for the first time. The young eagles also used the metal arm of the pole for perching.
On June 20th, H/04 took his first flight and his brother H/05 followed on June 22, all of which was caught on camera. Eagle Project volunteer Diane Wilson Cook has made a webpage, Bald Eagles at Three Bridges with the video clips from these flights. The fledges have been returning to the nest platform since fledging. The parent’s are still bringing food to the nest for the young eagles as they will be in the nest area for the next few weeks as they learn to hunt and survive on their own.
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By Barbara McKee, NJ Eagle Project Volunteer
Seven months ago, I learned that “Duke” had flown back to Somerset County in central Jersey, and was perched along the Raritan River not far upstream of his natal nest at Duke Farms. He was also very close to my home on the Millstone River in Hillsborough. Thus began my shared adventure with Duke, the 2019 fledgling who was outfitted with a satellite transmitter at banding (E/88) that May. I wrote a CWF blog, “Duke’s” Homecoming in January about those months during the fall and winter, of following and photographing Duke as he explored areas I knew well from bicycling and volunteering for the Eagle Project. I am very grateful and humble to have “found” Duke on quite a few occasions throughout November, December, and January. The trees were bare of leaves, and Duke’s full attention was on keeping himself fed. I gradually learned his habits and noted he tended to stick with several favorite roosts, perches, and hang-outs! It took patience, persistence, and a lot of luck! January 19, 2021, was the last time I saw Duke reasonably close, photographed and videographed him on a field in Hillsborough owned by Duke Farms.
Following that frigid, breezy, gray day in mid-winter, January 19, Duke headed north to Tewksbury where he spent most of his time on large, private farms and estates not conducive to allowing access to a wandering, eagle-watching, trespassing photographer! I could imagine he was finding prey in the fields, along the creeks, and in the occasional farm pond. I took many photos of bucolic scenery to share with others who were interested in Duke’s travels. At the end of January, central Jersey got snow storms which dumped an estimated accumulation of more than 2 feet of snow on the ground. Animals seemed to vanish. Even road kill was scarce. I worried that Duke would starve….that is, until while scrutinizing Google Earth, I realized he had settled on a hunting preserve that raised game fowl! He simply perched near the pens, let the hawk do the hunting, and no doubt “stole” from the smaller raptors! I stopped being so worried! For the entire snow-covered month of February, and half of March, Duke remained in Tewksbury. A couple times he dashed back to Duke Farms (approximately 20 miles to the south) and the Raritan River nearby. On one of those quick visits to his natal “home” he even visited me, perching again near our landing on the Millstone and downstream near the confluence with the main Raritan.
Continue reading “Playing Hide and Seek with an Eagle”By: Larissa Smith, CWF Wildlife Biologist
There are many aspects to the Delaware Bay Shorebird Project. During the month of May researchers survey, re-sight and band shorebirds as well as conduct horseshoe crab egg counts. Nine beaches in Cape May and Cumberland Counties have restricted access during May, which allows the shorebirds to feed on the horseshoe crab eggs.
Shorebird stewards are out on the beaches in all types of weather and insect seasons making sure that the restricted areas are respected. They do this through education and explaining to beach goers the importance of allowing shorebirds to have these undisturbed areas to feed. Stewards really make a big difference in shorebird protection on the bay and we thank them for all of their efforts this shorebird season. This season there were plenty of horseshoe crabs spawning with eggs in abundance, but unfortunately the shorebird numbers were down this season. For more details on the 2021 Shorebird season can be found in the article ,Red knot numbers plummet, pushing shorebird closer to extinction.
by: Larissa Smith, CWF biologist
In part 4 of this blog series the Three Bridges eagle pair had returned to the newly installed nest platform. We are happy to report that incubation began on February 24th.
Nest monitors have reported that hatching was occurring on April 2nd. Since nest monitors can’t see into the nest they go by the adults behavior to indicate hatching. The adult will start sitting higher on the nest, looking down more often and moving around. The eggs hatch in the order in which they were laid, so there could be a chick, while the adult continues to incubate any remaining eggs. The adults will feed the chick and a steady supply of food will be brought into the nest. Unfortunately the cam is currently not operational. It will require access to the pole to diagnosis the problem. A visit isn’t possible at this point, due to the nesting pair.
By: Larissa Smith, CWF Wildlife Biologist
The drama continues at the Three Bridges eagle nest. When I last wrote about this pair in part 3 of the blog series, they were busy working on a nest in a tree and had not been sighted at the newly installed tower with the nest platform. Eagle Project nest monitors have been keeping a close eye on both the new tree nest and the platform. The pair had been busy bringing sticks to the tree nest.
This past week nest monitors saw a pair of eagles on the transmission towers and mating on the platform! The volunteer’s have been trying to figure out if this is one pair or two separate pairs. On February 12th, a pair was seen at the tree nest and in the afternoon a pair was seen on the nesting platform, mating. Since then eagles have been sighted at both the nest tree and the nest platform.
It isn’t uncommon for eagle pairs to build more then one nest and perhaps the Three Bridges pair is deciding which nest to use. But the possibility remains that there could be a second pair in the area. The Three Bridges pair laid their eggs on February 23rd last nesting season, so they should start incubation in the next week or two. Dedicated nest monitors will closely monitor the situation to see which nest is used and when eggs are laid.
by Barbara McKee, NJ Eagle Project volunteer
As a volunteer nest observer working for New Jersey’s Bald Eagle Project under the guidance of Kathy Clark and Larissa Smith, I watch and report on six nests in central and northern NJ. When the Duke Farms eagle cam first went online in 2008, I loved watching the adult pair and their nestlings whenever I was at home on my computer! Web cams give us an intimate look into the lives of eagles. By observing close up, so much can be learned about eagle behavior, and this nest was only five miles from my home in Hillsborough. These were my eagle neighbors! In May of 2019, during the annual banding of the two eaglets at the Duke Farms nest, the younger male (banded E/88), was outfitted with a satellite transmitter and became part of the research program “Eagle Trax” to discover where fledglings go when they leave the nest.
Duke first went online Sept 17, 2019, after he had left the nest area, beginning his journey to adulthood as an independent eagle. Although Duke has made short trips over to PA and even a couple times returned briefly to NJ, to his natal nest area, he spent most of his time in Maryland on the lower Susquehanna River and upper Chesapeake Bay.
Then, early last November, I got an email from Kathy Clark. Duke had once again returned to NJ and was in Hillsborough, very close to our home on the Millstone River. I hustled right out with my scope and camera to see if I could spot him. If I was ever going to see Duke “in the wild” it would be now, with no foliage to block the views, while he was just a few miles away! As I searched the small patch of woods that corresponded to the last tracker location, I realized how challenging it would be to find this “eagle in the hay-stack”! Even with experience in spotting eagles, and having some ideas about the behavior of juveniles, where they might perch and what sorts of terrain they might be attracted to, actually seeing Duke would take a lot of patience and persistence, but most of all luck! To find him with good light in a spot where photos are possible, would take even more luck—what were the odds? Although through his transmitter he is being tracked, the data downloads only once every 24 hours, so I only knew where he had been, not where he was in real time!
I have been blessed to have seen Duke about a dozen times in the last eleven weeks. There have been many other times when I was probably looking right at him without seeing him and this is supported by the information from the tracker! A human playing “hide and seek” with an eagle is definitely at a visual disadvantage! I have learned that young eagles prefer wooded cover, small valleys with tiny streams where they might find a rodent or reptile. They tend to perch near water, not large rivers, but rather small creeks in narrow gorges or beside farm ponds. In winter, the best find for a hungry young eagle is a road-killed deer or other animal in a farm field that is fresh, but already immobile. A find like this keeps Duke perched and roosting close by until the food is consumed. I have seen many competitors for this precious winter commodity: vultures, other eagles, pesky crows, and at one site, even a coyote!
I also realized early on that Duke is just as likely to perch low and be almost invisible as he is to perch in a high tree top silhouetted against a light sky. Twice I flushed him off his perch because I was looking up not down. I learned that Duke has a favorite roosting spot where he has spent almost half of the nights he has been in central Jersey, but also discovered that he spent two nights within 100 yards of his natal nest in a small wooded area at Duke Farms!
I have taken hundreds of photos of Duke. The light isn’t always the best, and Duke is usually quite far away, but my photos and videos have shown a healthy and thriving almost-two-year-old who has learned to hunt and to defend his prey! He has also learned to be patient and careful, and to wait his turn, most notably when “sharing” a meal with much larger and thus more assertive young female juveniles!
I have seen him scatter and chase the competition off his food on fields. I saw him try to “steal” something from a hawk in the air. I have seen him in flight, a sight I never tire of! I even saw him perched over the Millstone River in my own back yard, probably searching for fish! That was truly memorable!
Will Duke decide to stay here in central NJ? Will he eventually mate, build a nest, and have nestlings of his own here? I hope so! Evidence suggests that eagles do return to an area not that far from the area where they fledged and began the challenging journey from fledging to maturity. I hope to share Duke’s adventures for many years to come.
by: Larissa Smith, wildlife biologist
It is always exciting to receive a report of a New Jersey banded eagle, especially when it is from Duke Farms eagle cam. D/99 was resighted two years ago during the winter of 2019. The blog post Duke Farms Alumni D/99: All Grown Up, has all the details of those sightings.
D/99 has been sighted again, this time in Freehold, Monmouth County. He was seen for several days feeding on a deer carcass along with a few other eagles.
D/99 was the youngest of three chicks in the 2014 Duke Farms nest. It’s amazing to see the “before” and “after” photos. The little fuzzy wobbling chick is now a full grown majestic adult.
D/99 is now seven years old and could possibly have a mate and be nesting in the area. We hope to get more resightings of D/99 in the future to know that he is doing well and raising his own family.
by: Larissa Smith, Wildlife Biologist
In part one and two of this blog series we followed the Three Bridges eagle pair. The transmission tower where they had previously nested was replaced and a new nesting platform installed. The question was: would the pair return and use the new nesting platform? Eagle Project volunteers have been closely monitoring the tower and surrounding areas for the eagle pair. The eagles have not been seen at their old nesting tower. At one point it looked like they were building a nest on an adjacent tower, but the amount of sticks never increased. Then a new eagle nest was found in a tree about a mile away from the tower location.
After many observations by nest monitors it is believed that this is the Three Bridges pair. While we can’t be 100 percent certain, the fact that they haven’t been seen at their old nest location and that this new nest is close enough to be in their territory. It is not uncommon for eagle pairs to relocate their nest if there is disturbance to the nest site. While it is disappointing, the new nest platform might not go to waste. Nest monitors have seen immature eagles perched on the newly installed tower and nest platform.
As the number of eagles’s nesting in NJ continues to increase, it only makes sense that a pair will eventually use the nesting platform in the future.
by: CWF biologist Larissa Smith
In Part one of this blog series the Three Bridges eagle nest was removed from the transmission tower. The tower was then dismantled. The next step was the installation of the new tower. This tower design is different then the old tower which had a lattice structure on top where the eagles built their nest. Since this new tower didn’t have have the same structure to support a nest, an eagle nest platform was designed and built .
During the entire procedure the Three Bridges eagle nest monitors recorded the eagle pairs activities. They were often perched on the nearby towers watching the activity. Nest monitor Mary Ellen Hill saw one of the eagles fly over to the new pole and hover above before flying back to another tower.
On a cold, snowy day the eagle nest was placed into the nest platform. The nest platform was then hoisted up to the arm of the tower and bolted in place. Now we wait and see if the pair will return and nest in their “old” nest on the new nest platform and tower.
Thank you to all the Eagle Project volunteers who monitor this nest and PSE &G employees who have worked hard to finish this project before eagle nesting season.