Lawrence Peregrines: late afternoon snack

March 13, 2017 in Near the Clock Tower

_W7I3539-001Made a late afternoon visit and was unable to spot the peregrines anywhere around the Clock Tower…..when just a bit of movement caught my eye.  It was one of the peregrines, on an upper ledge on the south side of the main building on Merrimack Street.  It was clearly feasting on a late day snack but doing so solo and enjoying each moment!

Lawrence Peregrines: pair bonding

February 28, 2017 in On the Clock Tower

_W7I2622-001Both Lawrence Peregrines were observed just before dark on a cloudy afternoon.  They were both perched on a lower granite ledge beneath the clock face on the NW corner of the Clock Tower.  The smaller peregrine on the left is the male and the larger peregrine on the right with thicker barring is the female.

As a bit of background, peregrine falcons form monogamous pair bonds that often last throughout many breeding seasons. Both males and females have a strong attachment to previous nesting sites, which may explain monogamy over multiple breeding seasons, rather than attachment between individuals.

Males display at nest ledges and other nearby locations to attract females and advertise ownership to other falcons. The development, and renewal of a pair bond is indicated by the male and female roosting near each other. Eventually they sit at the nest ledge side by side. Individuals may also peep at each other, preen, nibble their mate’s toes, or “bill” (gently grab the other bird’s bill in their own). Both sexes may then engage in “ledge displays”, centered on, or near, the area of their nest, or scrape. Prior to egg-laying, the pair will engage in incredible aerial displays, involving power dives, tight cornering, high soaring, and body rolls during a dive. Once the pair has formed, or been renewed, they begin to hunt cooperatively and females begin to beg for food from the male!

Peregrine Falcons: Haverhill

February 24, 2017 in Peregrine Falcons Haverhill

_W7I2404-001Made a late afternoon pass through downtown Haverhill and found both peregrines atop the east side of the roof at the Viewpoint Apartments located at 170 Washington Street. The east side is all shade late in the day, so both photos less than clear, but help to provide sense of where they are perching in late winter.  They have view looking east of the Merrimack and the bridge.

 

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Lawrence Peregrines: female at nestbox

February 23, 2017 in On the Clock Tower

_W7I2313-001As we move through February, we approach the start of courtship activities and the breeding season.  More often, the female will perch at the opening to the nest box or on the lateral wooden perch pole.  The female is more heavily spotted on the upper breast and becomes more heavily barred on the abdomen, flanks, thighs, and under the tail feathers.

During the start of the breeding season, the first indication of courtship activity is the perching/roosting of male and female at same perch locations. Eventually the pair perches/roosts side by side on the same ledge. During incubation, the male roosts in a prominent location away from scrape, often on or near the top of cliff. After brooding ceases, the female does not roost on nest ledge.

Lawrence Peregrines: female at sunset!

February 22, 2017 in On the Clock Tower

_W7I2302-001Standing securely at 267 feet tall, the Ayer Mill Clock Tower is the largest mill clock in the world, and a landmark for the Merrimack Valley. The tower itself was completed in 1910 as the crown jewel of the Ayer Mill, part of the American Woolen Company’s collection of mill buildings. The Ayer Mill operated for the next four decades, slowly shrinking in production as mill companies moved to Southern states with cheaper labor until it closed its doors in 1955.

With the collapse of the textile mills, it fell into disrepair. The bell had disappeared from the tower, the glass in the dials was broken, rain had destroyed the original beadboard ceiling at the bell level, pigeons were nesting from the cistern level to the top of the tower, and the original clock no longer functioned. Like the city of Lawrence surrounding it, the Ayer Mill Clock Tower was in decay.

The Greater Lawrence Community Foundation determined that the tower could be returned to its former grandeur, and proceed to raise funds for the restoration. Over $1 million was raised and put towards breathing life back into the symbol of Lawrence.

The Clock Tower has also been home for a pair of nesting Peregrine Falcons.  The peregrines keep watch around the Tower as they prepare for another successful breeding season.  Here is a photo of the female peregrine perched on the SW corner of the roof overlooking the setting sun in the distance!

Lawrence Peregrines: Verizon Tower!

February 16, 2017 in Verizon Cell Tower

_W7I0908-001It was another cloudy cold winterish morning with both of the Lawrence Peregrines tucked away on the hot air exhaust ledges at the Verizon Cell Tower.  The wind was strong out of the NW and the peregrines tucked in tight to stay warm!

 

 

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Lawrence Peregrines: female on steel beam

February 14, 2017 in Near the Clock Tower

_W7I0733-001Spent a bit more time searching for the female and finally found her perched in the sun on the south side of the New Balance building.  She was atop a steel beam perch just below the roof line near the intersection of Merrimack and Union Streets.  She is getting ready for courtship activities to commence over next few weeks.  These peregrines spend a considerable amount of time not flying, but rather in the boring, but no doubt important task of perching near the nest site. It’s their way of maintaining claim to their local territory, and letting others know that there’s no room at the inn. They’ve even been seen escorting other Peregrines out of the area without hesitation!

Lawrence Peregrine male: Verizon Tower

February 14, 2017 in Verizon Cell Tower

_W7I0576-001Another beautiful sunny morning with blue skies and light winds.  In these waning days of winter the peregrines still find comfort and warmth perched on the ledges at The Verizon Cell Tower.  The hot air exhaust vents provide lots of warm air from an elevated perch location overlooking the Merrimack River!

Lawrence Peregrines: female 5th floor Verizon

February 9, 2017 in Verizon Cell Tower

_W7I0500-001Out looking for the falcons this morning under overcast skies, light snow, NE winds at 20MPH and temps in mid-20’s.  They were both perched on ledges astride the hot air exhaust vents at the Verizon Cell Tower.  The larger female was perched and walking around a bit on the 5th floor and the male was scrunched into a corner one ledge over to the west and on the 6th floor!

Peregrine Falcon: Haverhill

February 8, 2017 in Peregrine Falcons Haverhill

_W7I0444-001Made a pass through downtown Haverhill under dark overcast skies in  search of the Haverhill Peregrine Falcons.  Looked high and low and then pulled into parking lot and river walk overlook next to Haverhill Bank.  Scanned the river, the west side of the bridge, and proximate rooftops.  Finally found one of the peregrines perched atop the east edge of the Bank of America rooftop.  It’s crop was bulging a bit, but otherwise unable to see leg bands during short visit.