Category Archives: Peregrines

7 Peregrines, 7 Merlins

Peregrine on porch railing at Lawrence Hall, 30 Sep 2016 (photo by Lori Maggio)
Peregrine on porch railing at Lawrence Hall, 30 Sep 2016 (photo by Lori Maggio)

Seven was the magic number for two iconic falcons during Pittsburgh’s Christmas Bird Count last weekend.

During Count Week, which includes the three days before and after Count Day (31 Dec 2016), observers saw seven peregrine falcons and seven merlins within the circle.

Two of the seven peregrines were elusive on Count Day but visible during Count Week.

  • 2 at the Cathedral of Learning on 30 December, (We saw one on Count Day.)
  • 1 Downtown at Lawrence Hall on 2 January 2017, perched as shown in Lori Maggio’s photo above,
  • 1 in Kilbuck Township on Count Day December 31,
  • 1 in Oakmont area on Count Day,
  • 2 in Shaler Township on Count Day.
Merlin (photo by Chuck Tague)
Merlin (photo by Chuck Tague)

All seven merlins were seen on Count Day, December 31:

  • 1 in the Oakmont area
  • 3 in Penn Hills
  • 3 in the City of Pittsburgh: 2 at Schenley Park and 1 along the Ohio River within the city limits.

So if you’re looking for falcons this winter, visit Pittsburgh’s 15-mile-diameter count circle shown below.

Map of Pittsburgh's Christmas Bird Count circle, PAPI (screenshot from Audubon Society Christmas Count map)
Map of Pittsburgh’s Christmas Bird Count circle, PAPI (screenshot from Audubon Society Christmas Count map)

Seven is the magic number.

 

(photo of Downtown peregrine by Lori Maggio, photo of merlin by Chuck Tague. Screenshot of Pittsburgh Count Circle map from Audubon CBC website; click on the image to see the original)

Improved Digs at the Pitt Nestbox

Bob Mulvihill secures the turf on the upper perch (photo courtesy Bob Mulvihill, National Aviary)
Bob Mulvihill secures the turf on the upper perch (photo courtesy Bob Mulvihill, National Aviary)

Yesterday morning I joined Bob Mulvihill (National Aviary), Jason Martin (M&P Security Solutions) and Phil Hieber (University of Pittsburgh Facilities Management) at the Pitt peregrine nest box for annual maintenance of the nest and cams.  We planned to cover the slippery plastic-pipe front perch, assess the gravel’s condition, and clean the webcams.

The top perch turf was loose so Bob reattached it with zip ties, above.  Then he began to wrap the lower perch with thick sisal rope that’s used at the Aviary for birds of prey.

Bob wraps rope around the front perch for a good talon-feel (photo from the National Aviary snapshot cam at Univ of Pittsburgh)
Bob wraps rope around the front perch (photo from the National Aviary snapshot cam at Univ of Pittsburgh)

Meanwhile I took measurements.

Kate measures the box while Bob unwraps the rope on the front perch (photo from the National Aviary snapshot cam at Univ of Pittsburgh)
Kate measures the box while Bob unwraps the rope on the front perch (photo from the National Aviary snapshot cam at Univ of Pittsburgh)

Unfortunately the pipe circumference is 5.5 inches and the rope was too short.  (We wish we’d had those measurements ahead of time!)  Bob zip-tied the old plastic turf back in place and drilled new holes under the gravel to improve drainage.

Bob reattaches the lower perch turf (photo from the National Aviary snapshot cam at Univ of Pittsburgh)
Bob reattaches the lower perch turf (photo from the National Aviary snapshot cam at Univ of Pittsburgh)

 

The resident female peregrine, Hope, zoomed by several times so Jason held up the broom to protect our heads. Thankfully she never came close.

Jason holds the broom for head-protection (photo courtesy Bob Mulvihill, National Aviary)
Jason holds the broom for head-protection (photo courtesy Bob Mulvihill, National Aviary)

 

Then Jason examined the cameras and cleaned the domes …

Jason cleans the webcam's protective dome (photo courtesy Bob Mulvihill, National Aviary)
Jason cleans the webcam’s protective dome (photo courtesy Bob Mulvihill, National Aviary)

… and added more pea gravel to the nest surface.  (Thank you, Phil.)

Jaons adds pea gravel to the Pitt peregrine nestbox (photo from the National Aviary snapshot camera at Univ of Pittsburgh)
Jaons adds pea gravel to the Pitt peregrine nestbox (photo from the National Aviary snapshot camera at Univ of Pittsburgh)

We were all done by 11:10am.

Two and a half hours later Hope stopped by to check out the new digs.

Hope visits the refurbished nest box at the Cathedral of Learning (photo from the National Aviary falconcam at Univ of Pittsburgh)
Hope visits the refurbished nest box at the Cathedral of Learning (photo from the National Aviary falconcam at Univ of Pittsburgh)

 

Thank you, Bob, Jason, and Phil, for all your help.

It’s looking good!

 

(photos by Bob Mulvihill and the National Aviary snapshot camera at University of Pittsburgh)

Fifteen Mile Commute

Hope at Tarentum Bridge, Tuesday morning, 11/22/16 (photo by Steve Gosser)
Hope at Tarentum Bridge, 11/22/2016 around 10am, (photo by Steve Gosser)

On Tuesday morning, November 22, a beautiful female peregrine perched close to Tony Bruno and Steve Gosser at the Tarentum Bridge. Her close approach reminded Steve of the peregrine Hope who used to live at the bridge before moving to the Cathedral of Learning.

Steve was able to photograph her bands, black/green, 69/Z, and yes indeed she was Hope.

Hope's color band, morning of 11/22/16 at Tarentum Bridge (photo by Steve Gosser)
Hope’s color band at Tarentum Bridge, around 10:30am, 11/22/16 (photo by Steve Gosser)

 

Did she stay at the bridge?  No.

Steve saw her at Tarentum until he left at 11:00am.  Then at 12:12pm the falconcam caught Hope courting with Terzo at the Cathedral of Learning.

Hope and Terzo bow at the Pitt nest, 11/22/2016, 12:12pm (photo from the National Aviary falconcam at Univ of Pittsburgh)
Hope and Terzo bow at the Pitt nest, 11/22/2016, 12:12pm (photo from the National Aviary falconcam at Univ of Pittsburgh)

She’s recognizable on the falconcam by her distinctive “muddy” gray face and her green right-leg band.  (It’s even greener-looking in subsequent photos.)

Hope at the Pitt nest, 11/22/2016, 12:15pm (photo from the National Aviary falconcam at Univ of Pittsburgh)
Hope at the Pitt nest, 11/22/2016, 12:15pm (photo from the National Aviary falconcam at Univ of Pittsburgh)

Below, her left leg band shows black/green as she leaves the nest.

Hope leaves the nest area showing her black/green color band, 11/22/2016, 12:15pm (photo from the National Aviary snapshot camera at Univ of Pittsburgh)
Hope leaves the nest area showing her black/green color band, 11/22/2016, 12:15pm (photo from the National Aviary snapshot camera at Univ of Pittsburgh)

 

So … Hope is using both her old and new territories this fall.

It’s only a 15 mile commute … as the peregrine flies.

 

p.s. If you search the WildEarth archives for this footage, you’ll find it on 11/22/2016 at 13:12.  WildEarth’s archive clock remains on Eastern Daylight Time so it doesn’t have to be reset for the nesting season.

(photos at Tarentum Bridge by Steve Gosser. photos at Cathedral of Learning nest from the National Aviary falconcam at Univ. of Pittsburgh)

Shuffle At The Pitt Nest

Unidentified female peregrine courting with Terzo at Cathedral of Learning, 11 Nov 2016 (photo from the National Aviary falconcam at Univ of Pittsburgh)
Unidentified female peregrine with Terzo, 11 Nov 2016 (photo from the National Aviary falconcam at Univ. of Pittsburgh)

Last weekend there was a shuffle at the Cathedral of Learning peregrine nest.  A new female came to visit.

On Friday afternoon Carol D. noticed something unusual and sent me this comment:

[11/11/2016]  I was watching the Pitt falcon cam this afternoon and Terzo was at the nest. At about 1:00 you could see the shadow of another falcon land on the ledge out of sight of the camera. After a short time, it came into the nest and didn’t act like Hope. I couldn’t see the legs very well, but it didn’t look like it was banded. I took a screenshot of it and compared it to one (of the many) that I have of Hope and it wasn’t her. She has a white chest area with few brown dots and comparing this screenshot with hers, the one that was there with Terzo had more of a cream colored chest with a lot of brown spots. I was just wondering if you or anyone else noticed this.

No one else reported it but thanks to Carol’s tip we knew where to look. I pulled the motion detection snapshots while Pittsburgh Falconuts friends made a video bookmark here: Terzo and friend at scrape.

Who was this female visitor?  Here’s what we know.

Her face has a faint peachy color.  (Notice the area between her nape and malar stripe in the next two photos.)

Unidentified female peregrine with Terzo, 11 Nov 2016 (photo from the National Aviary falconcam at Univ of Pittsburgh)
Unidentified female peregrine with Terzo, 11 Nov 2016
Unidentified female peregrine with Terzo, 11 Nov 2016 (photo from the National Aviary falconcam at Univ of Pittsburgh)
Unidentified female peregrine has peachy-colored face. With Terzo, 11 Nov 2016

She appears to be unbanded.  You can see one bare leg while she’s perched below, and both bare legs in the next snapshot.

Unbanded female peregrine with Terzo, 11 Nov 2016 (photo from the National Aviary falconcam at Univ of Pittsburgh)
Female peregrine with spotted breast and unbanded leg(s). With Terzo in background, 11 Nov 2016
Unbanded female peregrine with Terzo, 11 Nov 2016 (photo from the National Aviary falconcam at Univ of Pittsburgh)
Female’s legs appear to be unbanded.  With Terzo, 11 Nov 2016

And just as Carol said, her chest plumage is peachy-colored with many dots.

Unidentified female with Terzo, 11 Nov 2016 (photo from the National Aviary falconcam at Univ of Pittsburgh)
Unidentified female with Terzo, 11 Nov 2016

Even though she’s unbanded her appearance is so unique we’ll be able to recognize her if she returns.

And, yes, she is gone.  The shuffle was temporary.  24 hours later Hope was back at the nest.

 

(photos from the National Aviary falconcam at Univ. of Pittsburgh)

 

Mystery At Tarentum

Peregrine falcon 4-/BR at Tarentum Bridge, 6 Nov 2016 (photo by Anthony Bruno)
Peregrine falcon 4-/BR at Tarentum Bridge, 6 Nov 2016 (photo by Anthony Bruno)

Last Sunday, 6 November 2016, Tony Bruno photographed a peregrine falcon that’s been hanging out at the Tarentum Bridge.  His photo is beautiful and tantalizing. You can almost read her bands.

Even at high resolution all we can see is black/green, 4??/BR.  There’s a digit after the 4 but the bird’s feathers cover most of the number.

The black/green 40-series/BR means she’s a female from Pennsylvania but without the last digit we don’t know who she is.  Art McMorris, the PA Game Commission’s Peregrine Coordinator, examined the photo closely and wrote:

I agree that the bottom combination is BR, which means that it’s one of my bands. And the first digit on top is clearly a 4. However, I’m not so sure about the second digit. I see what you mean about it maybe being a 4, but I think that 2 is also possible, and even more likely, but I can’t be sure. I’m comparing your photo with bands that I have, and looking at the shapes of the digits.

What I can say is that the bird is a female, from Pennsylvania, banded in either 2014 or 2015. As Kate mentioned, 44/BR is from the Glenfield [Neville Island] I-79 Ohio River Bridge in 2015.  42/BR is from the Ben Franklin Bridge in Philadelphia, also in 2015.

So now we wait for more sightings of this peregrine and another great photograph to learn her identity.

What we do know is this:  She’s not Hope, 69/Z, who sometimes returns to Tarentum for a visit.  Hope “owned” the Tarentum Bridge for six years before she moved to the Cathedral of Learning 12 months ago.

 

(photo by Anthony Bruno)

Why Do Peregrines Like Bridges?

Hope (69/Z) at the Tarentum Bridge, July 2012 (photo by Steve Gosser)
Hope (69/Z) at the Tarentum Bridge, July 2012 (photo by Steve Gosser)

14 October 2016

When peregrine falcons look for a nest site they choose high places, often near water, with wide-open views of the surrounding landscape and lots of prey (birds).

Out in the wilderness, peregrines nest on sheer cliffs.  Pittsburgh doesn’t have cliffs but we do have nesting peregrines at on two buildings and many bridges.

It’s easy to see that a tall building resembles a cliff …

Cathedral of Learning (photo by Kate St. John)
Cathedral of Learning, 2015 (photo by Kate St. John)

… but bridges are open structures without sheer walls.

Tarentum Bridge nestbox project, The Bucket Truck, 27 Feb 2015 (photo by Kate St. John)
Tarentum Bridge, winter 2015 (photo by Kate St. John)

Why do peregrines like bridges?

I found the answer in a blog post from The Center for Conservation Biology (CCB). CCB monitors nesting peregrines in Virginia where many prefer bridges at the coast.

As you read the article linked below, watch for a photo of the Benjamin Harrison Lift Bridge where Hope (black/green, 69/Z) pictured above, was banded. She has nested at both kinds of sites in Pittsburgh:  six years at the Tarentum Bridge and now at a building, the Cathedral of Learning.

p.s. The article explains that peregrine nestlings from the Lift Bridge are hacked in the Shenandoah Mountains. Hope was one of those birds.

(credits are in the captions)

The Downtown Peregrines’ Favorite Places

Peregrine at Third Avnue nest site, 30 Sep 2016 (photo by Lori Maggio)
Peregrine at Third Avenue nest site, 30 Sep 2016 (photo by Lori Maggio)

Where do Downtown Pittsburgh’s peregrines spend their time?  Lori Maggio found out.

Lori walks to work on Smithfield Street and has a good view of Downtown Pittsburgh along her way.  From July 14 through September 30, usually at 7:15am, she recorded the peregrines’ locations whenever she found them.   This came to 27 days of observations since Lori didn’t walk every day and the peregrines weren’t always visible.

55% of the time Lori found a peregrine perched on the Lawrence Hall gargoyle at the Boulevard of the Allies facing Smithfield Street, below.  This is a very reliable place to find a peregrine falcon if you’re early Downtown.

Peregrine perched at Lawrence Hall gargoyle, Blvd of the Allies facing Smithfield St, 27 Sep 2016 (photo by Lori Maggio)
Peregrine perched at Lawrence Hall gargoyle, Blvd of the Allies facing Smithfield St, 27 Sep 2016 (photo by Lori Maggio)

Most of her other sightings were in the six-block area bounded by Forbes Avenue, Grant Street, the Boulevard of the Allies, and Wood Street.  Lori saw a peregrine at the Third Avenue nest site four times and heard the pair e-chupping once.   By the way, the Third Avenue nest site is inside that six-block zone.

Here are photos from some of Lori’s recent sightings, September 26-30, 2016.

The roof edge of the Huntington Bank Building:

Downtown peregrine at Huntington Bldg, 28 Sep 2016 (photo by Lori Maggio)
Downtown peregrine at Huntington Bldg, 28 Sep 2016 (photo by Lori Maggio)

A window ledge at Huntington Bank:

Downtown peregrine at Huntington Bldg windowsill, 26 Sep 2016 (photo by Lori Maggio)
Downtown peregrine at Huntington Bldg windowsill, 26 Sep 2016 (photo by Lori Maggio)

A porch railing at Lawrence Hall:

Peregrine on porch railing at Lawrence Hall, 30 Sep 2016 (photo by Lori Maggio)
Peregrine on porch railing at Lawrence Hall, 30 Sep 2016 (photo by Lori Maggio)

And on September 28 when Lori saw a peregrine on the Gulf Tower falconcam, she walked over to take its picture:

Peregrine at the Gulf Tower nest zone, 28 Sep 2016 (photo by Lori Maggio)
Peregrine at the Gulf Tower nest zone, 28 Sep 2016 (photo by Lori Maggio)

Peregrine at the Gulf Tower nest zone, 28 Sep 2016 (photo by Lori Maggio)
Peregrine at the Gulf Tower nest zone, 28 Sep 2016 (photo by Lori Maggio)

 

Great work, Lori!  Now we know where to look for these elusive birds.

 

(photos by Lori Maggio)

Peripatetic

Hope (69/Z) preens at the Tarentum Bridge, 28 Aug 2016 (photo by Anthony Bruno)
Hope (69/Z) preens at the Tarentum Bridge, 28 Aug 2016 (photo by Anthony Bruno)

Peripatetic: adjective [1] traveling from place to place, especially working or based in various places for relatively short periods. (definition from Google search)

Hope (69/Z, black/green) is a peripatetic peregrine falcon.  For five years she called the Tarentum Bridge her home until last spring when she nested at the Cathedral of Learning.

In my experience, peregrines stay put when they’ve claimed a prime territory but Hope does not.  On Friday she flew 15 miles back to Tarentum and set up shop for several days.

She’s so comfortable at Tarentum that, unlike her habits at Pitt, she perches in easy view.

Last weekend Tony Bruno and Steve Gosser stopped by for some great photographs. Above, Tony got a photo of Hope’s bands while she was preening.  Look how close she is!

Below, Steve caught the action when a curious mourning dove came close while Hope was eating. The dove escaped.

Peregrine falcon, Hope, confronts a mourning dove at the Tarentum Bridge, 27 Aug 2016 (photo by Steve Gosser)
Peregrine falcon, Hope, confronts a mourning dove at the Tarentum Bridge, 27 Aug 2016 (photo by Steve Gosser)

Peregrine falcon Hope stirs up a watchful mourning dove at the Tarentum Bridge, 27 Aug 2016 (photo by Steve Gosser)
Peregrine falcon Hope stirs up a watchful mourning dove at the Tarentum Bridge, 27 Aug 2016 (photo by Steve Gosser)

...and the mourning dove escapes at the Tarentum Bridge, 27 Aug 2016 (photo by Steve Gosser)
…and the mourning dove escapes at the Tarentum Bridge, 27 Aug 2016 (photo by Steve Gosser)

 

Apparently three days were long enough at Tarentum because Hope flew back to the Cathedral of Learning yesterday afternoon.  She appeared on the falconcam at 3:30pm, dug a little at the scrape and then perched and preened.

You can see her band colors below.  Her greenish right-leg band and black/green left-leg band are a diagnostic combination.

Hope reappears at Pitt, 28 Aug 2016, 3:30pm (photo from the National Aviary falconcam at Univ of Pittsburgh)
Hope reappears at Pitt, 28 Aug 2016, 3:30pm (photo from the National Aviary falconcam at Univ of Pittsburgh)

 

And here’s her familiar face.

Hope at Pitt, 28 Aug 2016, 3:34pm (photo from the National Aviary falconcam at Univ of Pittsburgh)
Hope at Pitt, 28 Aug 2016, 3:34pm (photo from the National Aviary falconcam at Univ of Pittsburgh)

 

She probably was at the Cathedral of Learning during last night’s terrific thunderstorm, but who knows.

Hope doesn’t perch in sight at Pitt so I’m never sure if this peripatetic bird is actually there.

 

(photos by Anthony Bruno, Steve Gosser and the National Aviary falconcam at Univ. of Pittsburgh)

Hope Is Visiting Tarentum

Hope at Tarentum, 26 Aug 2016 (photo by Rob Protz)
Hope at Tarentum, 26 Aug 2016 (photo by Rob Protz)

August is a good time for peregrines to wander.

Yesterday evening Rob Protz found Hope hanging out at the Tarentum Bridge, her former nest site from 2010 to 2015 before she came to the Cathedral of Learning.

Earlier in the day Karen Lang and I looked for Pitt’s peregrines with no success. Now we know why.

Rob’s sighting explains where Hope was. I wonder where Terzo goes when he’s not at Pitt …

 

(photo by Rob Protz)

p.s. And after I published this, Dori visited the Gulf Tower at 7:30am.

Dori at the Gulf Tower, 27 Aug 2016, 7:30am (photo from the National Aviary falconcam at Gulf Tower)
Dori at the Gulf Tower, 27 Aug 2016, 7:30am (photo from the National Aviary falconcam at Gulf Tower)

Meanwhile Downtown

Peregrine at the gargoyle, 9 Aug 2016 (photo by Lori Maggio)
Peregrine (probably Dori) on the gargoyle at Lawrence Hall, 9 Aug 2016 (photo by Lori Maggio)

While we watch the Cathedral of Learning falconcam for female challengers, the Downtown peregrines have been seen on camera, too.

Lori Maggio, Ann Hohn, and the Gulf Tower falconcam provide these photos of Dori and Louie’s whereabouts, July 29 through August 23.

Peregrine taking off from the gargoyle, 29 Jul 2016 (photo by Lori Maggio)
Winged gargoyle? It’s a peregrine! 29 Jul 2016 (photo by Lori Maggio)

 

Peregrine on the shield at Wood Street Commons, 1 Aug 2016 (photo by Lori Maggio)
On the shield at Wood Street Commons, 1 Aug 2016 (photo by Lori Maggio)

 

Dori says "hi" at the Gulf Tower, 9 Aug 2016 (photo by Ann Hohn)
Dori says “hi” at the Gulf Tower, 9 Aug 2016 (photo by Ann Hohn)

Ann’s photo, above, at the Gulf Tower was taken on the same day as the top photo at Third Avenue.  These sites are only four blocks apart.

 

Peregrine at the Times Building, 15 Aug 2016 (photo by Lori Maggio)
Dori at the Times Building, 15 Aug 2016 (photo by Lori Maggio)

 

Dori gazes at her domain, Gulf Tower, 20 Aug 2016 (photo from the National Aviary falconcam at Gulf Tower)
Dori gazes at her domain, Gulf Tower, 20 Aug 2016 (photo from the National Aviary falconcam at Gulf Tower)

 

Louie visits the Gulf Tower nest at 8:45pm, 23 Aug 2016 (photo from the National Aviary falconcam at Gulf Tower)
Louie visits the Gulf Tower nest at 8:45pm, 23 Aug 2016 (photo from the National Aviary falconcam at Gulf Tower)

 

(photo credits are in the captions)