Tag Archives: peregrine-falcons

Five peregrine falcon chicks fly at Acadia, but one nest fails

UPDATE 8/01/2017: Park today announces that trails associated with the Precipice, Jordan Cliffs and Valley Cove will reopen on Thursday, Aug. 3, after five peregrine falcon chicks fledged this year — down from 11 in 2016. Trails were closed on March 17.

Five peregrine falcon checks have fledged at nests at two sites in Acadia National Park this year, but for unknown reasons a nest failed at a third site that has yielded chicks in recent years, a biologist at the park said Friday.

peregrine falcon chick

Acadia National Park wildlife biologist Bruce Connery holds a peregrine chick that has just been lowered from its scrape, or nest, for banding. (NPS photo)

Bruce Connery, wildlife biologist at Acadia, said there was a pair of adult falcons at Jordan Cliffs and it is believed they started a nest but then one of the adults disappeared around the middle of June, and the nest failed. Connery said he does not know why the nest at the Jordan Cliffs failed but he said it was not related to the chicks or the nesting.

“My guess would be that one of the adults either left or was killed by a predator like a great horned owl,” Connery said.

On the positive side, the peregrine falcon chicks at the Precipice and Valley Cove have been flying since about July 1, and seemed alert and healthy when they were spotted by researchers, he said. At least one chick at each of the two sites was flying before the others, he said. “They are all flying now and they are doing great,” he said.

Three peregrine falcon chicks fledged at the Precipice and two at Valley Cove, he said.

The park usually waits for the peregrine falcon chicks to fly for five weeks before reopening trails, including the wildly popular Precipice Trail, that are closed in the early spring each year to protect the nesting falcons and chicks. The trails opened July 29 last year and usually open by early August each year.

peregrine falcon chicks

Peregrine falcon chick being banded in Acadia National Park this year. (Photo courtesy of Erin Wheat)

Connery said the nest failure at the Jordan Cliffs was disappointing because the birds were there and everything seemed to be going along pretty well.

“It would be more understandable if we knew what caused it to fail,” he said, such as the male being attracted to another place.

“We just know we started seeing only one adult …. There was no real rhyme or reason to why it happened.”

Male and female adult peregrines both play vital roles in nesting. Females usually lay eggs in early spring and females incubate the eggs while males hunt and bring food to their mates, according to the web site of the Chesapeake Bay Field Office of the U.S. Fish and Wildlife Service.

Researchers at Acadia don’t know if it was the male or female adult peregrine that disappeared because the feathers of both sexes are mostly similar, but Connery said he would guess that it was the male that left or was killed.

Connery said he was pretty positive it was a “natural event” that caused the nest to fail. He said there is no evidence that human interference was a factor in the nest failure.

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If not for Earth Day, imagine a silent spring in Acadia

As millions around the world mark Earth Day, imagine what Acadia National Park would be like without the banning of DDT, the Clean Air and Endangered Species Acts, or any of the other changes since that first massive showing of environmental activism in 1970:

peregrine falcon

Peregrine falcon chicks, like this one being banded on the Precipice of Champlain Mountain, would not be taking flight in Acadia, if not for the banning of DDT and the passage of the Endangered Species Act in the 1970s. (NPS Photo / Erickson Smith)

  • – No peregrine falcons nesting on the Precipice of Champlain
  • – Hazy views atop Cadillac
  • – Declining loon populations
  • – Acidified ponds that can’t support certain aquatic life
  • A silent spring in Acadia, with no birdsong

On this Earth Day and beyond, whether you’re marching for science in Washington on April 22 or for climate change action in Bar Harbor on April 29, or you’re volunteering for the Friends of Acadia’s annual roadside clean-up later this month, just imagine what a silent spring in Acadia would be like.

clean air act

Acadia webcam images show the impact of air pollution on the views. The Clean Air Act has helped improve visibility. (NPS Photo)

And imagine, too, what rising sea levels could mean to Acadia, as climate change worries join the ranks of environmental concerns like pesticides, mercury contamination, acid rain and acid fog, and air pollution.

As our way of marking Earth Day, of science’s contribution to protecting the environment of Acadia for people, plants and wildlife, and of the challenges like climate change still to be faced, we gather here some resources to remind us of how far we have come, and how much further we have to go.

May this listing, although not exhaustive, help spur reflection, respect, and action, in honor of Earth Day and Acadia. Continue reading

Jordan Pond a special fall experience at Acadia National Park

One in a series of historic trail highlights celebrating the Acadia Centennial

The path around Jordan Pond is an ideal hike for any time of year but it is especially beautiful in the fall.

acadia national park hiking

Fall colors light up the shore of Jordan Pond and the Bubbles.

The fall colors around Jordan Pond are spectacular if you catch them at peak, as we did on Saturday, Oct. 15.

We especially enjoyed the classic view of the North and South Bubbles, looking north from the southern shore near the Jordan Pond House, the only restaurant in Acadia National Park.

The pond is crystal clear, maybe because it is a public water supply and no swimming is allowed. The authoritative ” Guide’s Guide to Acadia National Park” says Jordan Pond is the “clearest lake” in Maine, but that could be difficult to corroborate.

The twin mountains called the Bubbles rise from the shore of the pond. North Bubble, at 872 feet, is ranked No. 13 for highest among Acadia National Park’s 26 peaks and South Bubble, at 766 feet and home to the iconic Bubble Rock, is No. 16.

acadia national park hiking

South Bubble bears a bit of a resemblance to The Beehive from this angle on the eastern shore of Jordan Pond. Both were shaped by the same glacial forces.

Like other lakes in Acadia, Jordan Pond is glacial, formed in a valley and then walled by debris.

The  “Guide’s Guide” says the Jordan Pond area contains a beautiful collection of glacial features. The massive valley between Penobscot Mountain, on the west side, and Pemetic Mountain, on the east side, filled with water to create the pond.

“The southern shore, where the Jordan Pond House sits, is a glacial moraine formed from glacial debris deposits,” the guide says. “These deposits form a wall at the southern end of the valley and create a natural dam that holds back the waters of Jordan Pond.” Continue reading

The peregrine falcon has “great” year in Acadia, 11 chicks fly

UPDATE 7/29/2016: Park today announces reopening of Precipice, Jordan Cliffs and parts of Valley Cove Trails, and closure of 1-mile section of Valley Cove Trail between Flying Mountain and Man o’ War Brook because of deteriorating trail conditions.

A biologist at Acadia National Park said several popular hiking trails at Acadia National Park should open by early next week, following “a great” year for the peregrine falcon at the park.

Peregrine falcon chick

A peregrine falcon chick is held for banding in the spring (Photo by Keith Wozniak/Acadia National Park)

Bruce Connery, wildlife biologist at Acadia, said 11 peregrine falcon chicks fledged, or took their first flight, at the park’s three main nesting sites this year. That’s up from 7 for each of the prior two years at those sites.

He said the peregrine falcon nests at the Precipice on the east face of Champlain Mountain and Jordan Cliffs each produced four fledged falcons and the nest at Valley Cove, three.

“It is great,” he said in an interview on Wednesday. “We usually have good success at one site, sometimes two. It is a rare to have that kind of success at three sites.”

He said there was also a chick of the peregrine falcon at Ironbound Island this year with a photo taken by the Bar Harbor Whale Watch Co. The park holds a conservation easement on Ironbound, a privately owned island in Frenchman Bay.

Sign for closing Orange & Black Path for the peregrine falcon

This trail closure sign on the Orange & Black Path, shown in early July, will soon be coming down.

The Precipice Trail, the Jordan Cliffs Trail, part of the Orange & Black Path and the Valley Cove Trail, which were closed early this spring to protect the falcon chicks, should all open maybe this weekend or by early next week, he said. The trails usually do open in early August every year.

The park has not officially announced the date for reopening the trails and trail crews still need to approve some trail sections for safety reasons for hikers, he said. The park announced the trail closures in March. Continue reading

Endangered falcons take the stage at Acadia National Park

Endangered falcons gave birth to 11 chicks this year at Acadia National Park and now are putting on a show for hundreds of visitors to the park.

endangered falcons

Park Ranger Andrew Wolfgang shows visitors the location of the endangered falcons and their nest during peregrine watch in Acadia National Park.

On Saturday alone, about 160 people stopped to catch the action of  the state-listed endangered falcons  at a “peregrine watch” site in the Precipice Trail parking area below a nest high on the east face of Champlain Mountain.

“We got a bird up,” said Park Ranger Andrew Wolfgang, pointing to the cliffs when one of the endangered falcons flew back to the nest after a brief absence. “It’s a really nice look at an adult in this scope right now.”

Wolfgang and Samuel Ruano, a peregrine falcon interpretive guide and raptor intern, supervised the use of two spotting scopes that allow visitors some excellent views of the peregrine falcons. Wolfgang and Ruano also spoke frequently to visitors about the history of the peregrines in the park and the need to temporarily close popular hiking trails to give the nestlings time to mature.

With the scopes, visitors could clearly see a peregrine falcon perched upright on the cliff face outside the nest or even the nestlings themselves.

“Amazing,” said Keith Spencer, a grade 7 English teacher in the public schools of Everett, MA, after he looked through the scope and saw a falcon. Continue reading

Look, up on the Precipice of Acadia – peregrine falcons!

UPDATE 8/6/15: The Precipice, Jordan Cliffs and Valley Cove Trails opened today, according to the official park news release.

While we wait for the Precipice Trail in Acadia National Park to reopen any day now, and as a follow-up to our blog post on the 7 peregrine falcon chicks that fledged this year, here are some never-before publicized photos of peregrine falcons, taken by Erickson Smith, biological science technician with the park.

peregrine falcon

One of the female peregrine falcon chicks banded this year in Acadia National Park, on the Precipice of Champlain Mountain. Looks cute and fluffy now, but once mature will dive after prey at more than 100 miles per hour. (NPS Photo / Erickson Smith)

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Peregrine falcons cap great year at Acadia National Park

A biologist with Acadia National Park said it was “a great year” for nesting peregrine falcons at the park.

peregrine falcon chick

Park wildlife biologist, Bruce Connery, holds a peregrine chick that has just been lowered from its scrape, or nest, for banding. Acadia National Park photo and caption.

Bruce Connery said peregrine falcons raised chicks that fledged at four sites including Jordan Cliffs, the precipice on the east face of Champlain Mountain, Valley Cove cliffs above Somes Sound and privately-owned Ironbound Island in Frenchman Bay, an island where the park holds a conservation easement.

“It’s great to have that kind of recruitment into the overall Maine population,” Connery said. “We had a great year. We have to be thankful for that.”

Connery attributed the success to a spring with low amounts of rain or snow. Damp or wet springs can be a problem for the eggs of birds that nest early including falcons and eagles, he said.

It might be the first time that particular combination of four sites was home to peregrine fledglings, he added.

“It seems to vary year by year,” he said. Continue reading