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.




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!

Chicks are helpless fuzz balls!

May 15, 2017 in Near the Clock Tower

2017.0515-001Peregrine Falcon chicks are helpless. One parent (often the female but sometimes the male) stays with the chicks while the other finds food for the brood. Eyases eat an incredible amount of food – but then, they double their weight in only six days and at three weeks will be ten times birth size. 

Newly hatched chicks are wet and covered with white down. But by three weeks of age, brownish juvenile feathers can be seen poking through the white fuzz. By five or six weeks of age, the white fuzz has been completely replaced by brown feathers. The eyases can be observed jumping around and testing their wings, getting ready to fly.


Lawrence Peregrines: copulating

April 5, 2017 in Near the Clock Tower

_W7I1317-001Mating starts as many as four weeks, or more, before egg laying and continues through the process, up to several times an hour.  The male will mount the female, typically no longer then ten seconds, then he will disengage and fly off. Fertilization of an egg happens every 48 hours. After being fertilized, it takes an egg 24 hours to develop and be laid… resulting in a new egg being laid every 48 hours!  We are likely a day or two away from the first egg being laid, if it hasn’t happened all ready!

Lawrence Peregrines: pair bonding continues

March 29, 2017 in Near the Clock Tower

_W7I9069-001Lots of pair bonding continues with the male and female.  they are frequently seen in very close proximity to each other with the breeding cycle in full swing.  This morning the female was seen eating prey on one of the triangle pediment ledges above the entry to one of the New Balance buildings located at 200 Merrimack Street under dark overcast sky conditions.  The male was just to the east on one of the short steel beams just below the roof line.



Lawrence Peregrines: female on the roof

March 28, 2017 in Near the Clock Tower

_W7I8973-001While passing by the New Balance building complex, just happened to notice a possible Peregrine on the peak of one of the triangular roof pediments on the south side of the building.  Turns out to be the female enjoying a mid-morning snack.  It was an overcast morning with low light conditions.  The male flew by for just a moment and then out of sight!

Lawrence Peregrines: male resting on ledge

March 23, 2017 in Near the Clock Tower

_W7I7290-001A late afternoon visit by the Clock Tower with both peregrines in sight.  The male was seen on a window ledge along the very west wing of the New Balance Building.  These ledges are more regularly used by fledglings after first flights.  From time to time the adults will be perched on these granite ledges to be near the nest or just to be out of the wind and to soak up the warmth of the late day sun!

Lawrence Peregrines: around the Clock Tower!

March 21, 2017 in Near the Clock Tower, On the Clock Tower

_W7I6838-001The Lawrence Peregrines continue to be very active around the Clock Tower!  They perch in and near the nest box, make all kinds of aerial flight patterns, and continue with copulation activities.  Late this afternoon, discovered the female perched on a NW ledge just below the clock face, the male circling in flight, and then finally, the male landed on the outer edge of the next box.  He was good enough to provide a look at his alphanumeric leg bands for positive ID!



Bald Eagle nest #2: incubation!

March 13, 2017 in Near the Clock Tower

Once incubation begins, the male and female take turns sitting on the eggs, but the female does most of the work. Typically the incubation period runs about 34 – 36 days.  While one sits on the nest, the other is hunting for food or perching nearby to protect the nest. Incubation begins after the first egg is laid, meaning that in a nest with more than one egg there will be an oldest sibling, a youngest sibling, and occasionally a middle sibling. _W7I3611-001Both the male and the female have brood patches, though the female has a much more developed brood patch.

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!