Lawrence Peregrines: fighting peregrines!

March 30, 2018 in Peregrine Falcons Eastern Massachusetts, Peregrine Falcons Massachusetts

IMG_9459Report from Tom French at MassWildlife:

Today, I received a call from Robert Carlson that two Peregrine Falcons were fighting on the front lawn of his house in North Andover, Essex Co., MA.  When Robert and his mother came outside from the house to look, one of the falcons flew off after about half a minute, but the second bird did not.  Eventually four people approached the second bird to about three feet away on two opposite sides.  The first bird came back swooping between the four people standing six feet apart striking the bird on the ground.  The first bird repeated this one more time, striking the bird in the ground, before leaving.  The grounded bird remained on the lawn for about 20 minutes in spite of people standing so close, and did not fly until they attempted to place a box over the bird. 

It is not known if the bird that flew off was banded, but the bird that stayed is banded 6*/4* black over green (type 6 band).   This is the original resident male that has been nesting in Lawrence since 2003.  This bird is now 17 years old bird and clearly lost this battle, so it will be interesting to see if he is able to maintain his place as the resident male in Lawrence for the rest of the season.  Here is his original banding information.

IMG_9461Band numbers:  2206-59866, and 6*/4* black over green

Banding date and location:  June 7, 2001 – NH, Hillsborough Co., Manchester, Brady Sullivan Tower Bldg. (12 story), 1750 Elm Street (25 miles north of Lawrence)

Sex:  Male

Previous reports of 6*/4*:  Became the resident male of the pair in Lawrence, MA – MA, Essex Co., Lawrence, 5 South Union Street, New Balance Shoes clock tower (042 42 8.75N, 071 09 16.95W).  This was probably the banded male of a pair of juvenile-plumaged birds seen in Lawrence throughout the spring of 2002.  The 6*/4* band was confirmed on 04-08-03, 06-04-07, 05-25-11 (Ursula & Dave Goodine), 02-05-12 (Craig Gibson), 05-18-12 (Dave & Ursula Goodine), 09-21-12 (Craig Gibson), 02-04-13 (Craig Gibson), 05-17-13, 06-09-15, 06-01-17

This report:

March 30, 2018 – MA, Essex Co., North Andover, Waverly Road (about 1 mile straight-line distance from the nest site) – fighting with another adult male Peregrine Falcon on the ground – photographed by Robert Carlson

Lawrence Peregrines: more courtship displays

March 29, 2018 in In the Nest Box, Peregrine Falcons Eastern Massachusetts, Peregrine Falcons Massachusetts

2018.0329-001Another series of early morning interactions inside the nest box between the male and female.  They continue with bowing and vocalizing where they bow to one another and make an “ee-chup” type sound.  During this type of courtship display they may also touch bills.  The female is facing the male, and she has no leg bands.

Literature Cited:

Cade, T. J., J. H. Enderson and J. Linthicum. 1996a. Guide to Management of Peregrine Falcons at the eyrie. Boise, ID: The Peregrine Fund, Inc. (Excerpt: Linthicum, Janet. Observing Breeding Behavior)

Lawrence Peregrines: copulation

March 27, 2018 in lawrence peregrines, Near the Clock Tower, Peregrine Falcons Eastern Massachusetts, Peregrine Falcons Massachusetts

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Made a pass by the Ayer Mill Clock Tower while heading to Industrial Way to observe the winter crow roost.  Skies were overcast, winds were E at 7MPH, and temps in mid-forties.  The male was in the nest box and then hopped out onto the wooden perch pole.  The female arrived and landed on the SW corner of the New Balance building at 200 Merrimack Street.  She cleaned her bill and then made a few soft calls to the nearby male.  He swooped off of the perch pole and landed atop the female with talons carefully tucked in.

During copulation the female is pitched forward,making an angle of about 45 degrees with respect to the perch The copulation wail is given throughout.  As the male mounts,the female spreads her wings out at the elbow about one-fourth open. The tail, up and to the side, may be partly spread.

 

_W7I4933-001The male flaps his wings throughout copulation, maintaining an upright posture with the neck extended and bent in a curve. Usually the male gives one or two bursts of the Chitter vocalization just before,during,and/or just after mounting and then Eechips sporadically. Some individuals give bursts of Chitter throughout.

Toward the end of copulation the male stops his tail movements pressing his cloaca against the female’s.  Rapid wing-beats accompany this tail-press.  The female may spread her tail partly at this time,and the male departs with a Hitched-Wing Display directly afterwards.

Literature Cited:

Cade, T. J., J. H. Enderson and J. Linthicum. 1996a. Guide to Management of Peregrine Falcons at the eyrie. Boise, ID: The Peregrine Fund, Inc. (Excerpt: Linthicum, Janet. Observing Breeding Behavior)

Wrege, P. H. and T. J. Cade. 1977. Courtship behavior of large falcons in captivity. Raptor Res. no. 11:1-46.

Lawrence Peregrine: perched on ledge!

March 12, 2018 in On the Clock Tower

_W7I2288-001Another morning visit to the Lawrence Peregrines at the Ayer Mill Clock Tower, under clear skies, bright sun, wind out of north at 8MPH, and temp just above 30F.  Observed both peregrines loafing on upper level perches on the west side of the Tower.  One of them flew off while the other remained on a ledge above and to the left of the west side clock face.

Lawrence Peregrines: pair bonding underway!

February 12, 2018 in lawrence peregrines, Near the Clock Tower, Peregrine Falcons Eastern Massachusetts, Peregrine Falcons Massachusetts

_W7I7077-001Made a morning run by the Clock Tower in search of the Lawrence Peregrines. Mostly cloudy, wind from NW at 9MPH, and temp around 42F.

The female was perched on the short but prominent steel beam on south side of Merrimack Street near intersection with Union Street. This is a very regular perch location in the morning, as the weather warms up.

 _W7I7129-001She was midway through a morning snack, when the male zoomed in and snatched the goodies….pair bonding underway!

Lawrence Peregrines: Verizon Cell Tower!

November 10, 2017 in Peregrine Falcons Eastern Massachusetts, Verizon Cell Tower

_W7I6768-001As the late fall temperatures drop below 30 degrees, the Peregrines start to spend more time at the nearby Verizon Cell Tower near the corner of Hampshire and Canal Streets.  They tend to perch on the fifth and sixth floor ledges located on the south side of the building.  These ledges are next to hot air exhaust vents.  These vents provide excellent heat during the colder months.

Found both adults happily perched near one another on sixth floor ledges in late afternoon.

Lawrence Peregrines: around Clock Tower

November 9, 2017 in Near the Clock Tower

_W7I6692-001The Lawrence Peregrines continue to loaf and enjoy the cooler fall days around the extended Clock Tower area.  Located the adult male this morning on one of the triangular roof pediments.  The morning was filled with bright sun, cobalt blue skies, light wind from the SE, and temps just over 50F.  The male looked a bit bedraggled with feathers blowing in the wind.  The female was nearby on the wets side of Clock Tower on a ledge above the clock face.

 

 

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Lawrence Peregrines: male 6/4

October 30, 2017 in lawrence peregrines, Near the Clock Tower

_W7I5920-001Made a late afternoon pass by the Ayer Mill Clock Tower for a brief look at the peregrine falcons.  While scanning for the peregrines, noticed hundreds of American crows streaming into the area west of the New Balance building complex and preparing for their overnight winter roost.  In the midst of the crow chaos, noticed a single peregrine buzzing a few of the crows.  The peregrine landed on a number of lower than normal rooftop perch locations, perhaps to take a run at some of the crows.  As it perched atop the roof of B&D Advanced Warehousing Corp. building in fading sunlight.  As it moved around just a bit while perched, the bi-colored alpha-numeric leg bands were exposed.  It was the male with the black over green 6/4 left leg band!

Lawrence Peregrines: preening and rousing

October 3, 2017 in On the Clock Tower

Made a late afternoon visit to the Clock Tower under clear skies, bright late day sun, light winds from the SE, and temp at 64F.  The adult male had just returned to a ledge on the NW corner below the clock face.

_W7I9115-001One thing the peregrine falcon does a lot is preening. Many hours each day is spent on the care of feathers, beak, cere and feet. Sometimes it seems like pure vanity, but it is in fact a necessity. Without well preened feathers the peregrine could become soaking wet when it rains, become ill and die. Or feathers that are not well groomed will cause drag when flying. When preening birds run their beaks through their feathers or scratching their heads with a toe.

_W7I9106-001Rousing is the the action of a peregrine erecting its feathers and then shaking them; part of grooming; a sign of a relaxed and content bird. Peregrines typically rouse (shake) after preening; also rouse during flight, particularly after leaving perch (unless to initiate a pursuit).

Lawrence Peregrines: adult male on upper ledge

August 28, 2017 in On the Clock Tower

_W7I4799-001Made a short visit to the Clock Tower with little to see upon arrival.  A few passing gulls and Double-crested Cormorants in flight over the Merrimack River.  Then a bolt of speed came in from the NW with a definitive flight pattern that could only belong to a peregrine.  Sure enough, the adult male arrived and with legs outstretched, landed on an upper ledge, above the west clock face, and in the shade.