Archive for the 'Peregrines' Category

Dec 17 2014

She Went Far — Very Far

Published by under Peregrines

U.S. Peregrine ends up in Japan (photo of article by Gary Gerhardt in the Rocky Mountain News, July 16, 1993)

In February 1993 Mamoru Nakamura photographed a female peregrine 100 km southwest of Tokyo.  She didn’t look like one of two peregrine subspecies normally found in Japan and she had bands that no one recognized — an all-black band on her left leg 5/V* and a silver band on her right.

Her photograph made its way to Japanese raptor expert Teruaki Morioka, co-author of Birds of Japan in Photographs and author of Birds of Prey in Japan.

Believing this peregrine to be a Western Hemisphere anatum subspecies he sent a letter and photo to raptor expert William S. Clark, author of the Peterson Field Guide to Hawks of North America.

Bill sent the photo to the National Park Service who confirmed her identity.  She was banded as a nestling at Glen Canyon Dam, Arizona in June 1991 and photographed in Japan in February 1993.

How did she get there?

The Rocky Mountain News article (snapshot above) called her “Wrong Way Peregrine” because she apparently flew west, not south as expected — but she may have been wandering as peregrines are wont to do.  Mike Britten of the National Park Service speculated that she hitched a ride on a ship crossing the Pacific and disembarked (without passport!) when she reached Japan.  We will never know.

In any case she went far — very far!

I heard about this bird from Bill Clark himself while on the Valley Raptors outing he led at last month’s Rio Grande Valley Birding Festival.  As we gazed at a peregrine perched on a water tower, Bill described this 1993 world traveler and later sent me a scan of the news article.

Thank you, Bill, for a great outing and such a wealth of raptor information!  I saw 13 Life Birds and my first ever aplomado falcon, white-tailed hawks and zone-tailed hawk on the Valley Raptors outing.

Check out Bill’s bio and publications here at The Peregrine Fund.

 

(photo of July 16, 1993 article by Gary Gerhardt in the Rocky Mountain News)

5 responses so far

Dec 12 2014

The Falcon Of The Queen

Screenshot of Falco della regina (screenshot from YouTube)

This beautiful YouTube video shows a family of Eleonora’s falcons (Falco eleonorae) at their summer home in Sardinia.

Eleonora’s falcon is an Old World hobby(*) falcon that winters in Madagascar and East Africa and nests on barren islands in the Mediterranean.  It was named for Eleonor of Arborea, national heroine of Sardinia. When you know Eleonor’s history you can see the honor of this name.

Eleonor took over Arborea, a sovereign state in west-central Sardinia, in a moment of crisis in 1383. The Crown of Aragon based in Barcelona had conquered all of Sardinia except Arborea and succession to the Arborean throne was shaken by the murder of Hugh III. Eleonor’s infant son Frederick was next in line to the throne so she rushed to Arborea and became regent Judge at age 36. In the first four years of her reign she united the Sardinians in a war against Aragon and won back nearly all of the island.

Eleonor’s greatest legacy was the Carta de Logu, the laws she promulgated in 1395.  Advanced for its time the laws were a uniform code of justice, publicly available, that set most criminal penalties as fines instead of imprisonment or death and preserved the property rights of women.  The Carta de Logu was so good that it lasted four centuries.

Eleonor passed another important though lesser known law: the protection of this falcon that bears her name.

As the video title says in Italian, this is the Falcon of the Queen.

 

(video posted on YouTube by santonagriva)

(*) Hobbies are smaller than peregrines, larger than American kestrels, and were often used by falconers to hunt birds. “Hobby” does not mean amateur pastime. Instead this word comes from Old French, probably derived from Middle Dutch “hobeler” which means to turn or roll.

No responses yet

Dec 08 2014

How To Escape A Peregrine Attack

If you haven’t seen this amazing video yet  …

Do great horned owls swim?  You bet they do if there’s nowhere else to go.

Last week passersby at Chicago’s Loyola Park saw a pair of peregrine falcons chasing a great horned owl away from their territory.  The owl flew out over Lake Michigan but the peregrines kept hammering it.  Eventually their attack forced the owl to ditch in the lake. Only then did the peregrines leave him alone.

Unlike ospreys, owls aren’t built to go airborne directly from the water so the owl swam the butterfly stroke to get back to shore.  peasant1 on YouTube captured it on video.

On the beach the owl caught his breath and dried out a bit before flying to a tree down the street.  Sand in wet feathers.  What an embarrassing mess!

That’s the last time this owl goes near Loyola Park!

 

(videos by peasant1 on YouTube, originally publicized by Fox 6 News)

3 responses so far

Nov 17 2014

Dorothy’s Oldest Granddaughter

Published by under Peregrines

Pittstop at Medina Raptor Center, 15 Nov 2014 (photo by Kate St. John)

Dorothy, the matriarch peregrine at the Cathedral of Learning, is 15 years old and no longer fertile but she’s fledged 42 youngsters and has many descendants.  Last weekend Karen Lang and I traveled to Medina Raptor Center to visit her oldest granddaughter.

Pittstop has lived at the Raptor Center in Spencer, Ohio ever since she was found with an injured wing in North Olmsted on September 12, 2003. Though her injury happened in September, she’d been flying for only two months. She hatched in early June because her parents had had such an eventful spring.

Louie (Dorothy’s son) was only a year old that spring when he fought and killed Boris at the Gulf Tower and left Boris’ body in camera view. After the dust settled Louie and Tasha (a wild-born female who claimed the Gulf Tower in 1998) paired up and laid four eggs.  “Pittstop” was born in Pittsburgh and stopped in Ohio when she apparently hit a building.

Here, Annette Piechowski holds Pittstop high while she tells her story.  You can see that Pittstop’s wing is not quite right … but that’s not why she’s unreleasable.

Pittstop with Annette, glove up, 16 Nov 2014 (photo by Kate St. John)

When her wing first healed Pittstop looked good in the flight cage and on the creance cord but she was stopped by incapacitating seizures. They’re related to her injury but no one knows how.  Sometimes they’re mild, sometimes grande mal, so she’s on medication to control them.  Evidently Pittstop knows when a seizure is coming on. Annette says she gets a faraway look on her face and flies down to the ground before the seizure happens.

Because of the seizures Pittstop does her educational work at the Raptor Center where she can receive immediate attention (and not alarm the public).  She’s a great peregrine ambassador.  Here she shows her concentration working with Toni McNamara.

Pittstop with Toni, 16 Nov 2014 (photo by Kate St. John)

 

I’ve sponsored Pittstop for many years so I was anxious to see how she’s doing.  The last time I saw her she was still in juvenile plumage.  Here we had a little reunion.

Pittstop with Annette Piechowski and Kate St. John, 16 Nov 2014

Then Pittstop had a message for me though I couldn’t hear it. (She silently opened her beak.)

Pittstop says "Hey" to Kate St.John, with Annette Piechowski

 

Later Annette Piechowski, Toni McNamara and Jackie Cabonor gave us a great tour of the Raptor Center and showed us the many educational birds:  owls, hawks, more falcons and Migisi the bald eagle.  I’ll be blogging about these beautiful birds in the near future.

Thank you to Laura Jordan and everyone at Medina Raptor Center for the good work you do for raptors and for taking such good care of Pittstop.

It was great to see Dorothy’s oldest granddaughter.

 

(photos from Kate St. John’s camera taken by Kate St. John, Toni McNamara and Jacki Cabonor)

4 responses so far

Sep 29 2014

Follow An Arctic Peregrine On Migration

Published by under Migration,Peregrines

Arctic peregrine, Island Girl (photo from the Southern Cross Peregrine Project)

Since 2007 the Falcon Research Group’s Southern Cross Peregrine Project (SCPP) has satellite-tracked some of the longest migrating peregrines in the Western Hemisphere.  Tagged at their wintering grounds on the coast of Chile, these peregrines have shown amazing stamina as they travel back and forth from Chile’s coast to the tundra cliffs of northern Canada.

Over the years the project has tracked 13 birds but now only “Island Girl,” pictured above, has a working transmitter.  First tagged in 2009 she’s provided many years of data.

In the screenshot below SCPP mapped her 2009-2013 north and south migrations.  As you can see she changes her route a bit year to year and season to season.  Heading south (red) she prefers to fly the shortest route to Chile, often across the Gulf of Mexico.  On her way north (blue) she travels by land and arcs across central Canada.  Click on the screenshot to see Island Girl’s combined 5-year map and explore her routes.

5-year map of arctic peregrine -- Island Girl -- migration routes (map from Southern Cross Peregrine Project)

Winter comes early to the Arctic so Island Girl began her southward journey this month, leaving her Baffin Island home on September 17.  By the time she roosted last night she’d already traveled 1,478 miles and was spotted by satellite at Vandeleur, Ontario just west of Eugenia Lake.

Where will she go today?

Click here for Island Girl’s Tracking Page, then drill into a date on the right to see her latest location.  Zoom the map to see the data points or click here for detailed location maps.

Follow an arctic peregrine as she migrates over North America on her way to Chile.  Go, Island Girl!

 

(photo and map from the Falcon Research Group’s Southern Cross Peregrine Peregrine Project.  Click on the images to see the originals)

3 responses so far

Sep 19 2014

Volunteers Count!

Published by under Peregrines

Peregrine at Tarentum (photo by Steve Gosser)

When a bird is on the Endangered Species List wildlife biologists pay a lot of attention to it.  When it’s de-listed funding dries up and official monitoring wanes.  How can we know a “recovered” species is doing well without official monitoring?  Volunteers count!  California’s peregrine falcons are a case in point.

This month in ESA’s Ecological Applications, Tim Wootton and Doug Bell compare California’s current peregrine population to the prediction they made in 1992.  In the process they highlight the value of dedicated volunteers.

Peregrine falcons were placed on the Endangered Species List in 1970 after they went extinct in eastern North America. By 1975 the U.S. had only 159 breeding pairs so wildlife agencies in many states established reintroduction programs to raise chicks in captivity for release in the wild.  California was one of them.

By 1992 California’s reintroduction program was so successful that state wanted to end the program.  Would the peregrine population falter without human assistance?  That year in Ecological Applications Wootton and Bell published a population viability analysis that predicted the future peregrine population with and without the reintroduction program.  It looked like peregrines would be OK on their own.

Fast forward to 2014.  How are California’s peregrines doing?  Was the model right?

Wootton and Bell ran the analysis again but found that peregrine studies were hard to come by.  “The challenge was to come up with data,” said Wootton. “Once a species falls off the endangered species list, there is not a lot of funding to track how management, or lack of management, is doing.  There was limited data that was appropriate being collected on the falcon, so we turned to a couple of well-known bird censuses that cover wide geographic areas.”

Enter the volunteers!  Wooton and Bell calibrated data from the Christmas Bird Count and Breeding Bird Surveys to the few intensive surveys done by wildlife biologists.  Interestingly, the Christmas Bird Count provided the best data.  “The greater number of ‘eyes on the skies’ in the Christmas Bird Count was key to obtaining a reliable sampling of the rare peregrines … Mustering many observers lowers the likelihood of undercounting rare birds.”

So how are California’s peregrines doing in 2014?

In 1992 the authors predicted that northern California would perform best because there were some population “sinks” in Southern California where the birds didn’t do well.  Thanks to volunteers, 2014’s analysis finds that though the population is lower than hoped for it’s well within the recovery trajectory.

Volunteers, give yourselves a pat on the back!  Your bird counts make a difference.

Read more about the study here in Science Daily.

 

(photo by Steve Gosser)

One response so far

Aug 12 2014

Dorothy Is Challenged

Published by under Peregrines

Dorothy flies in to roust a challenger, 10 Aug 2014 (photo by Peter Bell)

On Sunday afternoon I received a text from Peter Bell, “Intruder at Pitt. On about 4th floor windowsill of Union.  Dorothy and E2 are at top corners angrily e-chupping and diving.”

I live only 10 minutes away so I hopped in the car and went over to see.

As I waited for the light at Schenley Plaza I saw a solo peregrine flying eastward over Posvar Hall.  I surmised that I’d missed them and I was right.  Peter was waiting on the corner to fill me in.

Returning from a weekend trip, he’d gotten off the airport bus near Pitt’s Student Union and immediately heard unusual peregrine sounds.  Peter looked up to see three peregrines on the building.  Two angry birds had claimed the high ground.  The third was in an uncomfortable spot on the 4th floor windowsill.

Peter happened to have his camera so he fired off as many shots as possible while the action unfolded.  Ultimately Dorothy zoomed in and chased off the third bird (shown above).  I arrived in time to see E2 bringing up the rear.  Click on the photo to watch a slideshow of the action.

August seems an unusual time for an intruder but I know why she’s here.  Dorothy is 15 years old and has many physical challenges.  In March she laid only one egg, then became egg-bound.  She survived by expelling the malformed egg, then started to molt early.  Three months later Dorothy still looks very ragged, a sign that she’s not in good condition.

On camera at the nestbox she exhibits “tired” behavior.  After 13 years of watching her, I now see her pausing in new postures as if she aches.  In the slideshow the intruder looks sleek and nimble.  Dorothy does not.  Dorothy is challenged in more ways than one.

Under these circumstances, it’s obvious to other peregrines that Dorothy is not at the top of her form.  Wandering female peregrines will try their chances to win the site.  Sunday’s challenger flew away but she, or another, will be back.  Dorothy will chase again but at some point a new female will return to the Cathedral of Learning and Dorothy will not.

This is not unusual or “terrible” activity.  Chases and fights are the normal, natural way that peregrines insure strong birds own every site and produce healthy young peregrines for the future. Old humans fade away slowly, surrounded by family (or not).  Old peregrines go out with a bang.

We are privileged to watch and learn.

 

(photos by Peter Bell)

p.s.  Peter saw in his photos that the intruding female is banded.  He couldn’t read the band but the colors are Black/Red.

10 responses so far

Jul 17 2014

TBT: New Tenants?

Pigeon at the Pitt nest box, 21 June 2014 (photo from the National Aviary falconcam at Univ of Pittsburgh)

On Throw Back Thursday (TBT), a 2014 replay of something that’s happened only three other times since 2008…

Word must have gotten out that the Pitt peregrine nestbox wasn’t used much this spring. Some surprising new tenants stopped by last month.

On June 21 a pair of pigeons inspected the site for three hours.

“Wow, honey!  Look at this perfect location.  I’ve heard it’s dangerous up here but this area looks completely safe.  What a cool place to nest.  We could move in immediately!”

Pigeons at the Pitt peregrine nest, 21 June 2014 (photo from the National Aviary falconcam at Univ of Pittsburgh)

After three hours they began to wonder… “Did you hear something? I have a creepy feeling we’re in danger.”

Cathedral of Learning pigeons on alert (photo from the National Aviary falconcam at Univ of Pittsburgh)

 

The pigeons never moved in.  ;)

 

Click here for a story about pigeon nest-shoppers in 2008.

 

(photos from the National Aviary snapshot camera at University of Pittsburgh)

No responses yet

Jul 16 2014

Bridge Gone, But Not Its Peregrines

Published by under Peregrines

I-90 Inner Loop Bridge demolished in Cleveland, Ohio, 12 July 2014 (screenshot from cleveland.com video)

(screenshot from cleveland.com)

 

Perhaps you saw the news Dick Rhoton sent me of the I-90 Inner Belt Bridge demolition in Cleveland last Saturday, but you might not have realized its significance to birds.

The bridge is gone, but not its peregrines.

The old span, built in 1959, was home to a pair of peregrines for all their productive years but was also rusty, corroded and becoming dangerous.  Pictured below on a foggy day in a 2012 by Chad+Chris Saladin, you can see a pier of the new I-90 bridge being built to its right.   The new span is finished now, carrying traffic in both directions while it waits for the eastbound lanes to go up where the old bridge stood.

Underside of old I-90 Inner Loop span in 2012 (photo by Chad+Chris Saladin)

Though a nest box was provided on the new span, Newt and Bolt chose the old bridge as usual this year and raised one juvenile who fledged at the end of June — all this despite the fact that demolition contractors were taking apart the bridge around them.   By the time of the final implosion, their home was a gap-toothed structure with four of its five spans already gone.

Here’s a photo of the nest site in 2012 by Chad+Chris Saladin.  Look at the condition of that bridge!  Traffic was still using the bridge when this picture was taken.

Peregrine nest at old I-90 Inner Loop span, 2012 (photo by Chad+Chris Saladin)

Everyone worked together to make sure the peregrines were safe.  As demolition day approached, Ohio Division of Wildlife (DOW), Ohio Dept of Transportation(ODOT) and the demolition contractor discussed the peregrines’ status and decided that with two weeks of flight experience the juvenile would be able to get out of the way.  The remaining danger was that the birds might be perched on the old structure during the explosion so the contractor scheduled a warning blast to tell the birds to evacuate.

Saturday morning Laurie and Jenny from DOW were stationed with binoculars and spotting scope to watch for the peregrines.  The warning blast went off five seconds ahead of the main blast and then ….  BOOM!  Click here or on the screenshot at top to watch the bridge collapse.

After the dust cleared at least two, maybe all three peregrines, were found.  As Chris Saladin wrote:

“I’m thrilled to report that the juvie and at least one adult were spotted by DOW’s Laurie and Jenny following the explosion of the remaining parts of the dismantled old I-90 Bridge this morning!! We would assume that both adults are probably okay, since two of the three peregrines were spotted (and if the juvie “sensed” her need to leave the structure one would assume that each adult would have an even more developed sense of danger and would know to depart). … [Laurie] let us know that after the “dust cleared” she and Jenny were able to see the juvie through the spotting scope and then saw an adult fly by the juvie. Additionally, Tom from ODOT let Laurie know that as DOW was moving to a different angle for viewing he saw one adult plucking prey on a top beam of the fallen span, about 30 feet off the ground!”

We hope Newt and Bolt will find the nest box on the new bridge just as inviting as the old one.  It will be impossible to “go home” next spring.

(top photo is a screenshot from cleveland.com.  Click on it to read the whole story.  Remaining two photos by Chad+Chris Saladin)

2 responses so far

Jul 14 2014

Peregrines, Eagles and Two Events

Peregrine at Green Tree water tower, 1 April 2014 (photo by Leslie Ferree)
Here’s the latest news of Pittsburgh’s peregrines and bald eagles plus information on two events:  Westinghouse Bridge Fledge Watch, July 18-20, and the Eagle Lovers Outing on August 2.

Peregrine News

Westinghouse Bridge (photo by Joseph Elliott, Library of Congress)
Westinghouse Bridge
Peregrine season isn’t over!  Two nestlings at the Westinghouse Bridge will fledge next weekend.  John English has organized a Peregrine Fledge Watch for Friday July 18, 6-8pm, Saturday July 19, 2-4pm and Sunday July 20, 2-4pm.  Click here and scroll down for directions.  Please contact John at Pittsburgh Falconuts Facebook page or leave a comment on this blog if you plan to attend.  I’ll be there on Saturday. C’mon down!

Green Tree Water Tower
Green Tree wins the prize for strangest peregrine behavior.  After a long absence during the heart of the breeding season, a pair of peregrines is again at the Green Tree water tower.  What happened between April 1 (the date of Leslie Ferree’s photo above) and now?  Did the old pair leave and a new pair show up?  Stop by the Green Tree water tower and tell us what you see.  Peregrines always surprise us.
UPDATE, 16 July:  Tim and Karena Johnson visited the water tower recently and saw a pair of red-tailed hawks perched on the railings. Since we know that peregrines drive out red-tails — and all other hawks — within their territory it’s probable that the peregrines are not at the water tower at all.
UPDATE, 17 July: Mary Jo Peden, one of the long-time Green Tree monitors, saw a peregrine at the water tower today. It had been exactly two months since she last saw one there. So, yes, they are there but not often.

 

Dorothy and E2 after a bowing session at the Cathedral of Learning nestbox (photo from the National Aviary snapshot camera at Univ of Pittsburgh)
University of Pittsburgh, Cathedral of Learning
Dorothy and E2 are present every day but not often seen because they’ve found new hiding places in which to molt.  The snapshot camera shows they still visit the nestbox for brief bowing sessions (last Friday, above).  Meanwhile the streaming falconcam and infrared array have both shut down and need an on-site visit from a skilled technician with access to the ledge.  This maintenance will be scheduled in the fall.

 

Peregrine with pigeon meal, Tarentum Bridge, 3 July 2014 (photo by Steve Gosser)
Tarentum
Rob Protz reports that “mom” peregrine (nicknamed Hope) was at the Tarentum Bridge with her remaining juvenile for several hours on July 8.  The youngster, whom Rob calls “Screecher,” was begging loudly for food.  It sounds like Hope is weaning him from dependence on his parents.  Pun intended!

Gulf Tower, Monaca Bridge, Neville I-79 Bridge and McKees Rocks Bridge:  No updates from any of these sites but at this time of year that’s good news.

 

Bald Eagle News

One of the juvenile Bald Eagles from the Hays PA nest (photo by Dana Nesiti)

Hays
All three eaglets fledged successfully in late June and are flying so well that they’re hard to find. They are out and about learning the ways of eagles and how to find food.  Meanwhile, to wrap up the season, Eagles of Hays PA and Urban Eagles in Pittsburgh are planning an Eagle Lovers Outing and tour on Saturday August 2, starting at 11am at Vallozzi’s Restaurant in Greensburg, PA.  Click here for more information.

Harmar and Crescent Township  There’s no update from our other eagle sites but, as for peregrines, no news is good news at this time of year.

 

With no nest activity, the next six months will be very boring for peregrine and bald eagle fans.  We’re looking forward to 2015.

 

(photo credits in order of appearance:
Peregrine at Green Tree water tower, 1 April 2014 (photo by Leslie Ferree)
Westinghouse Bridge (photo by Joseph Elliott, Library of Congress)
Dorothy and E2 at the Cathedral of Learning nestbox (photo from the National Aviary snapshot camera)
Peregrine with pigeon meal, Tarentum Bridge, 3 July 2014 (photo by Steve Gosser)
Juvenile bald eagle from the Hays PA nest (photo by Dana Nesiti)

4 responses so far

Next »

Bird Stories from OnQ