Over the past five years, long term efforts have been ongoing to complete a large-scale grassland restoration at the McGuire Airfield. So far, roughly 500 acres have been treated and seeded to encourage the growth of native warm season grasses with another 100 acres to be completed by next spring. The planting of species like little bluestem, sideoats grama, and blue grama has helped to create grassland bird nesting habitat and conserve existing habitat, while accommodating necessary airfield procedures and safety.
Keeping the vegetation on the airfield short is important to ensure airport safety and to achieve that goal, the fields must be mowed. When the vegetation reaches 12-14 inches, the area is mowed back down to 7 inches. The vegetation before the start of the restoration project was a mix of native and non-native woody, forb, and grass species, with some plants growing at a faster rate than others. The quicker these plants grow, the more frequent mowing must occur. It’s for this reason why native warm season grasses were planted, which have a slower growth rate and tend not to grow more than 12-14 inches. By planting these species and reducing mowing frequency, the grassland birds have less disturbance and human impacts on their nesting season.
This work is done in cooperation with the USFWS New Jersey Field Office, and grassland bird surveys are completed throughout the summer to monitor success. Stay tuned to learn more about our grassland bird results for the 2022 breeding season.
Vegetation must be mowed when grasses exceed 12 inches.
Osprey 52/K. September 5, 2022. Photo by Chris Kelly.
In 2014, we began to band osprey nestlings produced at nests within the Barnegat Bay watershed with auxiliary bands. This was an effort which came about from the interest of Jim Verhagen, a LBI resident and wildlife biographer. He wondered why young ospreys were not banded with color, field readable bands, like some endangered raptors, including bald eagles and peregrine falcons. This spawned Project RedBand, an osprey banding and re-sighting project. The goal of the project was to learn more about ospreys when they are alive while engaging coastal residents in their management. Just under 500 young ospreys were banded with red auxiliary bands from 2014-2020 from nests all along the Barnegat Bay estuary.
It’s official. The Northern long-eared bat is listed as an endangered species under the U.S. Fish and Wildlife Service’s (USFWS) Endangered Species Act. Earlier this year, the USFWS announced the proposed uplisting due to severe population declines. This uplisting would help to protect and recover this imperiled species and the ecosystems upon which they depend on.
A Northern long-eared bat is held in a gloved hand- these bats are less that 4 inches long with a wingspan of 9-10 inches.
Through the Endangered Species Act, species may be listed as either endangered or threatened. The term “Threatened” means a species is likely to become endangered within the foreseeable future. The term “Endangered” means a species is in danger of extinction throughout all or a significant portion of its range.
When CWF biologists encounter an injured bird while doing field work, we usually turn to Tri-State Bird Rescue and Research for help. A recent visit to the Tri-State Bird Rescue and Research facility located in Newark, Delaware provided great insight into the efforts that go into ensuring that injured and oiled birds have a second chance in the wild. Their mission is to provide professional, compassionate rehabilitation to native injured and orphaned wild birds and contaminated wildlife, and to promote their stewardship through education and humane research.
The facility has two programs, the Wild Bird Clinic and Oiled Wildlife Response. With more than 40 years of experience, the Wild Bird Clinic provides expert medical care, housing, and diets to injured, orphaned, and oiled native wild birds.
Inside the Oil Response Center you see large buckets to wash birds and other wildlife. Hoses hang from the ceiling to provide easy access and to avoid hazards.
An osprey nest with hatchlings on May 16, 2022. One of many nests that eventually failed to produce young this year.
Whenever we look at how ospreys are faring, weather is always taken into account. When we summarize and report on the results of our summer osprey nesting surveys, we also look at the local climate. Being situated along the Atlantic coast, our weather is influenced by the ocean. As aerial predators of fish, ospreys are reliant on favorable water conditions to forage.
Preliminary results of the 2022 New Jersey Osprey Project Census show that the osprey population was not as productive this year as they have been over the past ~20 years. This was largely due to a low pressure system (nor’easter) that stalled off the coast in early May — when the majority of pairs were incubating eggs. The strong onshore winds caused moderate coastal flooding, windy conditions, increased wave action and water turbidity, which made it more difficult for ospreys to find and catch prey in coastal waters. Males do 100% of the foraging from the onset of egg laying until young begin to fledge, so when they are unable to provide food, females must abandon their nests and eggs to forage for themselves. The nor’easter in May appears to have affected the outcome of many coastal nests and in some cases, complete colonies. Of course there are many other causes for nest failure but this year weather played a major role.
It’s that time of year again, the days are getting shorter, temperatures are dropping, and creatures of the night are lurking behind shadowy corners. As Halloween approaches one animal comes to the forefront of everyone’s mind – bats.
Bats have been misunderstood by humans for many years and are still among the most persecuted animals on earth. In many parts of the world, bats are killed due to fear or harmful myths that make them seem scary or even dangerous. However, the fact is that bats are one of the most beneficial animals to humans.
As mentioned in the previous weeks, there was one special bat that made its way into the top of our net during the 2022 bat field season that left us overjoyed! One juvenile, female hoary bat (Aeorestes cinereus) was captured during our last week of surveying. This is only the second time this bat has been captured at this site in the Pinelands. Even though the hoary bat is not an endangered species, this is a rare capture for our team because the species is generally flies high and our nets only go as high as 5.5 meters. Additionally, the habitat we survey is more suited to the Northern long-eared bat which like densely cluttered forests, whereas the hoary bat typically is found on the edges of open fields.
As a volunteer for Conserve Wildlife Foundation of NJ and NJ’s Wildlife Conservation Corps I monitor bald eagle, osprey, and kestrel nests for the state. Kestrel monitoring is new to me this year. They are North America’s smallest falcon. I enjoy watching them hunt, hovering over the grasslands and open fields. Monitors watch and record milestones of the nesting season. Fledge Day is the end of our season and what we hope to witness. Friday – I knew the chicks would be fledging soon, and hoped I had not missed it. I sat in my vehicle and watched for just over 3 hours! I could hear noise from inside the box as wings were being flapped and exercised. For the longest time, I thought one had already fledged since I was just seeing one perched in the box opening.
By: Susan Harrison, NJ Bald Eagle Project Volunteer
I am a volunteer eagle nest monitor for New Jersey’s Bald Eagle Project. A new nest was discovered in central New Jersey this year by birder Chris Brown. Larissa Smith, the volunteer coordinator for the Bald Eagle Project and Conserve Wildlife Foundation asked me to monitor this nest. I did not know at the beginning of nesting season, what an interesting story would unfold! In mid-April, by watching the behavior of the adult eagles, I could see that eggs had hatched and that the adults were feeding eaglets that were still too small to see. At the beginning of May I caught glimpses of the head of one eaglet peeking up over the top of the nest rails. Too cute! By the end of May, I could see the head of a second chick in the nest. But this chick looked very different! I soon discovered this chick looked different because it was not a Bald Eagle at all! It was a red-tailed hawk chick in the eagles’ nest! I could not believe what I was seeing! I took lots of photos to document this situation, a first for New Jersey! I consulted with two respected birders in the state, Chris Brown, who is a county eBird reviewer and Tim Brown, to help verify and document my observations for CWF and the NJ DEP/ENSP. We observed the adult eagles feeding both the red-tailed hawk chick and the bald eagle chick. It was one big happy family, with both chicks getting along with each other and with the adults quite well.
