Another season of growth and new life is here! As many species are beginning their annual life cycle to reproduce, some peregrine falcon pairs already have young. The eyases (young falcons) at the Union County Falcon Cam are a prime example. They are now a little over a week old and have been examined and treated for a pigeon borne disease, called trichomoniasis, which adult falcons can transfer to their young. If young falcons would get trich., then they could perish. Kathy Clark, NJDEP Fish & Wildlife Supervisory Zoologist, UC staff and colleague Cathy Malok, w/ The Raptor Trust visited the site to ensure the survival of this brood.
The breeding season started off well enough for the peregrine
family that star on our Falcon Cam in Jersey City this year. Four eggs were
laid, three sisters hatched, were banded and were growing up high atop the
skyscraper at 101 Hudson Street. Thousands of viewers enjoyed seeing them
flapping and jumping, strengthening their flight muscles for their first flight
to fledge from the nest.
Jim Wright, whose “Bird Watcher” column appears twice-weekly in The Record and on NorthJersey.com, shares his favorite places to spot rare and beautiful birds in North Jersey. Video created with Wochit.
Nest cams offer you a peek into the natural world from the comfort of your own phone or computer screen. Jim Wright interviews CWF Executive Director David Wheeler about the cams and why they are such an effective way to connect people to wildlife.
“Viewers feel the drama, the danger, the sibling squabbles, the results of chases for prey, the perils of wind and rain and snow and windblown trees, and of course the joys of a new egg hatching or a bird taking flight for the first time,” Wheeler explains.
CWF has long led the efforts to offer free wildlife webcams, made possible by generous sponsors and partners such as Phillips 66 and Union County Parks, whom CWF partners with on the Union County peregrine falcon cam in Elizabeth.
Human Interaction and Quick Action Ensure Survival of Young Falcons in Urban Areas
by Ben Wurst, Habitat Program Manager
Yesterday NJ Fish & Wildlife Zoologist Kathy Clark and I visited 101 Hudson St. after watching the Jersey City Falcon Cam for several days since the first and only egg hatched on Wednesday evening, we became more and more concerned for the health of the 5 day old eyas. We also came upon a brood of three young (and healthy) falcons who were displaced (we’ve called them orphans) from the old Goethals Bridge, which is currently being deconstructed. Knowing that the orphans needed a home, we decided to visit JC and assess the health of the lone eyas, collect the unhatched eggs, and possibly foster in the orphans here. Continue reading “Management of Urban Nesting Falcons in New Jersey”
The peregrine falcon pair that took up residence on top of the Union County Courthouse in Elizabeth NJ laid their first egg on March 22. Shortly after, an intruding peregrine falcon caused the pair to defend their territory, leaving the resident female with injuries following the altercation that lasted on and off for several days. Despite her injuries, the resident female laid a second egg. Periodic sightings of the intruder, who was confirmed as female 91/BA (Cadence) from Rochester NY, continued throughout the week. On March 29 following an excruciating battle – for those watching and certainly for the falcons involved – the intruder was chased off.
Territorial battles like these force peregrine falcons to exert a tremendous amount of energy and undergo a great deal of stress – neither of which are beneficial to the eggs. Although male and female peregrine falcons take turns incubating the eggs, the female peregrine falcon is typically responsible as the primary means of incubation. Unfortunately, constant provocation from the intruding female kept the resident female off the eggs for extended periods of time.
On April 4th around 5:30 pm, Kathy Clark, ENSP Zoologist, was watching the live feed and witnessed 91/BA hit the resident female with a devastating blow – she has not been seen since.
The intruding female, having successfully won the territory and the affection of the resident male, did not waste any time familiarizing herself with her new surroundings. In a surprising turn of events, 91/BA adopted the 2 eggs from the previous female and laid 3 more of her own.
Unfortunately, we now know that the two eggs laid by the former resident female are not viable and will not hatch. The adults will continue to take turns incubating all five eggs. Incubation appears to be very consistent, so if all goes well hatching should take place sometime between May 30 – June 3. Stay tuned!
We’re really excited for the beginning of the peregrine falcon nesting season this year, especially for the pair that calls Jersey City home! We got this great video from Falcon Cam viewer Eric Chandler which shows the pair vocalizing to each other. Peregrine falcons mate for life and this will be the pair’s second nesting season. The first was not productive since they had just paired up and were too busy courting each other to raise any young.
Soon, over the skies of downtown Jersey City, the male will perform bold aerobatic flights over his eyrie (nest site) include loops, tight turns, and swooping dives. He also will provide the female with gifts to show his commitment to her – in the form of food, not a diamond ring. To help strengthen their pair bond (relationship) the male and female perform what is referred to as a “bowing” when they vocalize with a “ee-chupping” call which is seen in this short video.
We are in the process of activating the camera. We will let you know when it begins streaming on our website.
Peregrine nestlings as viewed from the nest cam at 101 Hudson St.
We hope you’re enjoying the “Month of the Falcon” series! The summary below was created to tell the story of a peregrine nest (also referred to as an eyrie) at 101 Hudson St. in Jersey City where a live webcam broadcast the live view of the nest during the nesting season. It’s important to remember that we would not know any of this without the use of the camera to monitor the nest. The summary was written using posts to Nestbox News and from banding and re-sighting data from Kathy Clark, Supervisory Zoologist with the Endangered and Nongame Species Program.
1999
A pair of peregrines were first spotted by observant building managers at 101 Hudson St. more than 10 years ago. They often caught glimpses of peregrines streaking through the sky, in pursuit of prey, with the NYC skyline in the background. They knew what they were witnessing was rare and wanted to help. They contacted biologists with the Endangered and Nongame Species Program and a plan was made to help establish a nesting pair there. In 1999 there were only 15 known pairs of peregrine falcons in the state. Continue reading “Month of the Falcon – Part III”
Peregrines are now common residents of NJ’s coast. Photo by Northside Jim.
It’s hard to believe now, but peregrine falcons were once extirpated from their nesting grounds in the Eastern United States. They were federally listed as endangered in 1969 (prior to the passage of the Endangered Species Act of 1973) under the Endangered Species Conservation Act of 1969.
Shortly thereafter a reintroduction project began. New Jersey was one of the first places were wild nesting occurred.
Today more than 25 pairs of peregrines nest in New Jersey and their reproduction here remains strong. However, biologists remain concerned of their long term recovery since they have some of the highest loads of DDE and mercury (Clark et al. 2009). Continue reading “Month of the Falcon – Part II”
