Last week we set out to finally repair the osprey cam at Edwin B. Forsythe NWR. (Note: we do all of the technical repairs and maintenance to the camera system) Initial repairs were delayed to protect the osprey young. Timing restrictions are set in place to reduce disturbance to nesting ospreys and nests cannot be disturbed from April 1 – August 30. This is a good thing! When we finally set out to figure out the issue with why the camera suddenly lost power, we had to wait until it was safe to enter the nest. When we first went out (August 15) for a quick diagnosis (after we knew all young were flying and not relying on the nest as much) and got the cam online again…but it died after 30 minutes of streaming…
We went out again in late September and determined it was the solar charge controller but had to wait to get a new one. In October we went out out to replace the charge controller but the system was still down and the equipment was not getting power. The two batteries only had 6 volts of charge and needed to be recharged. So, the two 50lb. batteries were lugged a pretty long distance and charged up. Once they held a charge we made plans to go back to re-install them and hoped it would work. Success!! The batteries powered up the system and within minutes the camera was streaming online!
Special thanks to volunteer Joe Bilotta for helping out with the re-installation of the batteries!
by Larissa Smith, Wildlife biologist/Volunteer Manager
2013 was a good year for the New Jersey bald eagle population. A total of 148 nests were checked during the season and 119 were found to be active (with eggs). A record high of 177 young were produced. Eagle nests can now be found in all but two of New Jersey’s 21 counties.
As we wrap up the 2013 season eagle pair’s are already reported to be working on nests for the 2014 nesting season. I would like to thank all of the dedicated eagle project volunteers as well as all others involved in the eagle project.
Peregrine falcons are the largest falcon in New Jersey. They are found world-wide and are the fastest bird. They were once extirpated from the state (and all areas east of the Mississippi River) by 1964, after DDT decimated their population. A recovery program spearheaded by The Peregrine Fund helped to re-establish the eastern population by releasing captive bred birds. The birds were “hacked” on towers on the coastal saltmarsh where prey was readily available and predators (great horned owls) were minimal. The program was successful and by 1980 the first wild nesting of peregrines occurred at Edwin B. Forsythe National Wildlife Refuge in Oceanville. Since then the population has steadily increased because of the dedicated biologists and volunteers who help to monitor and manage them. Continue reading “Jersey City’s Peregrine Falcons”
Volunteers help to “re-plant” leaning osprey platform
by Ben Wurst, Habitat Program Manager
This past week I was joined by a large group of volunteers to remove and re-plant a leaning osprey tower in Point Pleasant. It all began after Superstorm Sandy barreled through the area a little over a year ago…
This nest, along with many others, were uprooted from where they were originally installed. Many homes in the area were flooded by the storm surge associated with the storm (and many were still rebuilding when we were there). Any and all debris that was created ended up being pushed to the high areas of the marsh and in turn, people’s yards. This platform ended up in a homeowners backyard. Fortunately the platform was not lost and was thankfully re-installed by a bulkheading company who was working on the homeowners house. This was great news for the ospreys! Their nest had been returned to the saltmarsh and was, in turn, used again by them this past summer. They raised one nestling on the platform.
Things a-drift…a strong Nor’easter ended up pushing over the platform, which caused it to lean…significantly. However, the ospreys adapted and added nesting material to make sure their only nestling would not fall out. At the same time we made plans to re-plant the platform in a section of marsh with more soil, so the platform would have a firm foundation and support. A crew of strong and able volunteers met up with me to help fix the problem. They pulled out the platform and then we transported it to the new location. There we dug a new hole (around 2-3′ deep) and they easily dropped the short (around 12′ high) platform into the hole. These volunteers did a great job, and I was happy to see that many of them lived in the local area. It’s great to see locals getting involved in their local environment and I know that they’ll continue to watch over the nest if anything should happen to it in the future. I’m planning on working with the local community association (who owns the land) to install a couple more platforms for ospreys. There’s little suitable nesting habitat for ospreys up on N. Barnegat Bay and in the past we’ve had problems with birds nesting on houses, so this will only help reduce those occurrences.
Not exactly stable…Not much dry land either…Down she goes…All better!
We continue following the movements of the female that had the transmitter placed on May 29th, 2012. She spent the winter down at the Delmarva Penninsula in coastal Virginia and then headed up north and spent a large portion of the summer in Maine. She is starting to head south and on September 2nd was in Connecticut.
On May 31, 2013 the largest of three chicks at the Merrill Creek Reservoir nest, a female, was fitted with a transmitter.
Merrill Creek chick with transmitter May 29th, 2013
This transmitter is different than the ones previously used in that it uses GSM technology. Instead of using satellites to pick up the bird’s location, the transmitter will transmit data via cell phone towers. The data is then transmitted over the internet and delivered as an email to a mobile device or computer. This new technology transmits more data, costs less and allows users to have instant access to the data through smart phones or computers. Since fledging this bird has been on the move spending time in NY, PA and back to NJ and as of September 3rd was back near the nest site.
Eagle Project Volunteer Tom McKelvey captured this photo of one of the juveniles that fledged from the Shark River eagle nest in mid-June. So far this nesting season 157 young eagles have fledged from NJ nests. The juveniles will remain in the nest area for the next few months while they develop their flight and hunting skills.
Earlier this week two 3 week old peregrine falcon nestlings were banded by Kathy Clark, Supervisory Zoologist with NJ Fish & Wildlife. We checked this nest for hatching after earlier visits revealed that the pair had only began laying eggs when all other nests had young that were 3-4 weeks old in June. We’re really not sure when they were so late this year. Kathy had to wait for temperatures to fall before banding the young, since extreme temperatures only stress out adults in addition to the stress of us humans checking on their nests.
I just wrapped up the most intense field season in my entire career. In cooperation with NJ Fish & Wildlife’s Endangered and Nongame Species Program I help to monitor and manage the state population of ospreys. For the first time in four years we are conducting a statewide census for nesting ospreys. Almost all areas that I’ve surveyed, from Monmouth Beach to Atlantic City (and Wildwood) have done quite well, and the effects of Sandy on nesting ospreys appears to be minor.
Barnegat Bay is an area where I’ve concentrated much of my work. Over the past 5 years the number of available nesting platforms has tripled, from only a handful to over 50. Almost every platform was active this year. Amazing enough, this year on Barnegat Bay, a total of four nests produced four young each (one can be viewed on a live streaming camera at Island Beach State Park)!! This is quite a rare occurrence and is something I’ve never seen, especially for all of them to be on the same watershed is simply amazing!! Full results from all the surveys will be released in early fall. All of the data collected from surveys will be used in the census and we are looking for the public to help fill in valuable gaps in data.
Ospreys are indicators of a healthy marine environment. Ospreys are top tier predators who feed exclusively on fish. Many contaminants runoff into our coastal waters and over time become biomagnified through the food chain. Ospreys are extremely sensitive to many contaminants, including organochlorine pesticides (DDT), polychlorinated biphenyls (PCBs), and heavy metals. Since ospreys eat the same fish that we do, then their health also has implications for people. So, the bottom line is that it is important to monitor the nesting activity of ospreys in New Jersey!
We need your help:
For the first time in the project’s history we’re attempting a statewide census of nesting ospreys without the use of aerial surveys! This was a common (and very effective) way of surveying large areas in a short amount of time with only very minimal staff effort. Some things have changed since the 1970s and 80s….the survival of ospreys are not in jeopardy and helicopter surveys are much more expensive now! Over the past 6+ years, with help from many dedicated volunteers, we have surveyed around 70% of the known population in New Jersey. This year, CWF and NJ Fish & Wildlife’s Endangered and Nongame Species Program decided to release the locations of almost 1,000 known nest sites for ospreys to the Center for Conservation Biology’s Osprey Watch, a global osprey watching community website.
On Osprey Watch anyone can see nest sites and then report nesting activity at those nests. Users can join our monitoring group “New Jersey Osprey Project” and report on any nests they watch or where we are lacking data. You can also map new nests, add photos, and even indicate the type of nesting structure. It’s a pretty awesome website for anyone who is into ospreys!! 🙂
So far twenty-one eagle chicks have fledged from nests in NJ. Eagle Chicks take their first flight around 11-12 weeks of age but weeks before that they’ll start stretching their wings, flapping and hopping around the nest. These activities help to strengthen the muscles they’ll soon need for flight. The next step is to start “branching” which means they they’ll hop from the nest to the branches of the nest tree. They’ll then take short flights to nearby branches to gain strength and confidence. After fledging they’ll remain in the area of the nest tree for several weeks to learn to hunt and practice flying.
Last year 26 nesting pairs of peregrine falcons were monitored in New Jersey. The core of the state population nests on towers (old hacking towers) and on buildings in urban areas. Each spring we assist NJ Division of Fish & Wildlife’s Endangered and Nongame Species Program to help monitor the core of the population by performing nest checks and by installing a remote, motion-activated “spy” cam in nests to record the adults as they enter and exit nests. The footage captures the legs of peregrines. Why? Many peregrines are banded before they can fly with a federal USGS bird band and a state bi-color, alpha-numeric band. The state bi-color band can be read from the video captured by the camera. The information that these identifications provide is immensely valuable for relating peregrine origin and age to nest success, site fidelity and turnover rate in the population.
Here is a short clip from a nest site in Ocean Gate and the bird in the video was identified as a male (*8/*5, black/green) that was banded in 2005 at Sedge Island.
