Each year since 2017, CWF has been teaming up with partners from the USFWS New Jersey Field Office to survey the JB McGuire Airfield for grassland birds during the breeding season. Part of a long-term monitoring project, the airfield has been undergoing habitat restoration to maintain native warm season grassland habitat. The habitat restoration efforts are nearly 70% complete with roughly 700 acres seeded since 2017 and another 100 acres to be completed the following year.
Six of the ground-nesting bird species documented at the airfield are State-listed as either endangered, threatened, or of special concern. The eastern meadowlark (Sternella magna), a member of the blackbird family, is a State Species of Concern. It prefers a minimum of ten to twenty acres of unfragmented dense grasses of medium height for nesting. The State-threatened grasshopper sparrow (Ammodramus savannarum) favors patches over 100 acres containing short- to medium-height bunch grasses interspersed with patches of bare ground, a shallow litter layer and scattered forbs. The savannah sparrow (Passerculus sandwichensis), also State-threatened, requires a mix of short and tall grasses, a thick litter layer, dense ground vegetation, and scattered forbs. Another member of the blackbird family is the State-threatened bobolink (Dolichonyx oryzivorus). Bobolinks prefer to place their nests in areas of greatest vegetative height and density and could potentially nest in patches as small as five to ten acres. The State-threatened horned lark (Erimophila alpestrias) nests in areas of barren ground with short and sparse cover and are quick to abandon sites as vegetation grows thicker.
Grasshopper sparrow nest located at McGuire Airfield, May 2023. The well-camouflaged nest was discovered after the adult bird flushed from the grass. The eggs were as tiny as a thumbnail.
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.
Christine and Jim Healy construct Barn Owl nest boxescompleted Barn Owl nesting boxes
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.
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.
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!
American Oystercatcher at Cook’s beach: Haematopus palliatus photo: C. FranceschiniBald Eagles, Haliaeetus leucocephalus, photo: C. Franceschini
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!
C. FranceschiniHorseshoe crab eggs photo: C. FranceschiniFemale horseshoe crab, photo: C. Franceschini
I recently attended my first career fair at Stockton University. When asked if I would attend, I felt like I couldn’t say no, as I am currently seeking at least 5-6 student interns or seasonal field technicians to assist with several wildlife conservation projects. At first, I wasn’t sure what I could display to draw attention to our table and prospective summer jobs working with rare wildlife.. Then it hit me. I bring what I use when working with wildlife in the field!
Green band D/25; banded in April 2011 at the Manasquan River; photo by; Rich Nicol
Bald Eagles are the earliest nesting birds in New Jersey. Two pairs of eagles laid eggs in December of 2022 and those nests have already hatched. Those pairs are the really early “birds”, so far 73 pairs of eagles are incubating (laid eggs). Nest Monitors are keeping an eye on over 300 known eagle territories in NJ, the bulk of which lay their eggs in February to mid-March. Eagles incubate for approximately 35 days before hatching occurs. The female does most of the incubating the male also takes over the incubation duties so the female can go out and hunt. One hundred and fifty nest monitors keep track of the eagle nests and report on incubation. It can be quite difficult to tell when an eagle is in the nest incubating. Sometimes all the nest monitor can see is just the top of the head pop up every now and then. One way to determine incubation at a nest is to witness a “nest exchange”, where the male and female switch incubation duty.
photo by: Barb McKeephoto by: Kevin Reddenphoto by: Poolake’s
Over the next few months as the eagles incubate and hatch chicks, they are very sensitive to disturbance. Nest Monitors are trained and experienced and only view the nest from a location that doesn’t disturb the eagles. Monitors use high powered scopes and cameras to determine the status of the nest. While it’s always a great sight to see an eagle, please respect them and view from a distance. To see what goes on in an eagles nest close up check out the Duke Farms eagle cam. The pair is currently incubating two eggs and hatching of the first is expected around February 24th. You can also watch a pair of eagles at The Three Bridges eagle cam. They aren’t yet nesting and we’re not sure where they will nest this season, but they have been making frequent appearances at the nest tower.
The results are in! It wasn’t a great year for upland sandpipers at the McGuire Airfield. Numbers of breeding pairs at this location have decreased to an estimated two pairs. Numbers can be variable from year to year so there is still hope for better news in 2023.
Upland sandpipers typically require a minimum of 100 acres for breeding habitat and so large expanses of open, grassy land is a high priority. 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 converted to native warm season grasses with another 100 acres to be completed by next spring. Our goal is to help create and maintain grassland bird nesting habitat for Upland sandpipers and other species.
With 2022 coming to a close, Conserve Wildlife Foundation’s staff took a moment to reflect on what they were thankful for this year at work and with regards to New Jersey’s wildlife.
The CWF team (Board and staff) enjoyed a holiday celebration at Flying Fish Brewery.
I’m thankful for New Jersey’s incredible wildlife and my role in protecting so many at-risk species. I owe my greatest appreciation, however, to the dedicated people who carry out and support CWF’s work to strengthen wildlife populations and educate the next generation of environmental stewards. Our Board and staff are truly extraordinary at what they do, and our contributors, volunteers, and partners make all our success stories possible.
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.
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.
