Lawrence Peregrines: 2020 Egg #2!

March 26, 2020 in In the Nest Box

Conditions: overcast skies, wind NW at 7MPH, temp at 35F; forecast for today – partly sunny, with a high near 51. Northwest wind around 8 mph and tonight -mostly cloudy, with a low around 33. Northeast wind 3 to 5 mph.

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Great news this morning about 10 minutes before sunrise time, checked the nest box web cam and egg #2 has been laid overnight! This first image was captured through the webcam about 6:40AM. At first look, the female was out of the nest box, and then returned minutes later. Normally, the eggs are laid 48 hours apart, but there may be variations. We’ll expect the third egg on Thursday morning. Until the next to last egg is laid, the female may only incubate form time to time unless the temp is a bit cooler.

 

 


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Later in the afternoon as the sun came out and the temperature warmed up, the female was seen incubating both eggs!

Lawrence Peregrines: mock combat!

June 26, 2019 in Near the Clock Tower

_W7I6865-001The young Peregrines were out in full force this afternoon in and around the Verizon Cell Tower on Hampshire St.  This has been a regular location for the young Peregrines over the past few years after they have fledged.  One of the two females, the one with leg band, BV/66 was seen on the rooftop on the Verizon Tower while taking a short break.  These young Peregrines spend a lot of time in playful mock combat and then time to res

 

 

Observed one of the peregrine fledglings in aerial flight with large loops and infrequent diving stoops. Quite an exciting show from the young fledgling. To my surprise, another fledgling joined the fun and the real show got underway! For over 20 minutes, they proceeded to engage in an amazing demonstration of playful mock combat. Here is
an explanation of mock combat from Cornell’s Birds of North America:

_W7I7049-001Play occurs mainly in young. Immatures will pursue adults, siblings, prey, and attack inanimate objects.  Playful pursuit of siblings begins 2–3 d after first flight, mock combat between siblings begins 4–5 d after. Mock combat progresses from flying parallel and occasionally rolling to extend feet toward siblings, to making short darting dives and grappling in the air, to using air currents to make vertical stoops. Latter develops within 3 wk of flying. Play in falcons may be an expression of joie de vivre or it may simply represent the maturation of neuro-muscular coordination and central control mechanisms involved in agonistic behavior and pursuit and 
capture of prey.

Lawrence Peregrines: loafing around Clock Tower!

June 19, 2019 in Near the Clock Tower

_W7I6483-001Made a late afternoon visit to South Canal St. to observe the fledglings around the Clock Tower under overcast skies, light winds, and temp at 66F.  Had a chance to see all three peregrine chicks and both adult parents.  The cover photo shows two of chicks loafing on a ledge on a NW corner of the Clock Tower.  The adult female is on lookout on the ledge below and the adult male does a flyby to keep an eyes on the young ones. In this photo, the scene shows the young ones loafing, female below, and the male has just landed to the right.

 

 

_W7I6433-001One of the great joys of monitoring a peregrine falcon nest, eggs, hatchlings, nestlings, and then fledglings, is the exciting moments around first days of flight.  Although they rest quite a bit, as they adjust to their new life outside the nest box, their flight patterns are a joy to behold.  Most of the flight patterns are a bit awkward, their takeoffs and landings, a bit uneven.  They love to zoom around in playful flight with adults and each other. Flights grow stronger day by day over the first week.  Many times the youngsters will engage in mock combat drills with rolls and outstretched talons. The family usually remains close around the Clock Tower, roosting in many different locations. By now the nest box looks bare, with few remains left behind.

Lawrence Peregrines: on the wing!

June 18, 2019 in Near the Clock Tower

The Peregrines started off this morning under mostly cloudy skies, wind from NE at 5MPH and temp at 62F.  The forecast calls for a chance of showers, mainly after 9am. Cloudy, with a high near 73. Calm wind becoming northeast around 5 mph in the afternoon.  Tonight, isolated showers before 1am. Patchy fog after 5am. Otherwise, cloudy, with a low around 58. Light southeast wind. 

_W7I5920-001What a joy to watch these young Peregrines on the wing and in flight around the Clock Tower.  Made my way over to the Clock Tower last night just after 5:30PM.  While heading over the Duck Bridge, it was possible to see a number of Peregrines in flight while circling the Clock Tower.  From a big picture perspective, the young falcons will be seen in this general area for the next 6-8 weeks.  This has been the pattern every summer over the last number of years.  At times, it is a challenge to find them, but tend to they stay around and remain within a  3/4 mile radius. The cover photo shows 65/BV, the chick that had fledged first thing Monday morning. She is turning in flight around the west side of the Clock Tower!  This photo shows the ever vigilant mother keeping a close eye on her brood.

_W7I6305-001After searching a bit longer, was able to also locate and observe the young female, 66/BV.  She was wedged tightly into a granite ledge corner on the SW corner of the Clock Tower, well below the clock face.  The ledge, on the south side, was very narrow and made moving around very difficult.  She walked back and forth along the ledge a number of times with little room for error. She was kind enough to provide a clear view of her leg bands for positive identification!

Lawrence Peregrines: both females fledge!!

June 17, 2019 in Near the Clock Tower

The Peregrines started off this morning under patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. West wind 3 to 5 mph. The forecast calls for mostly cloudy, with a low around 61. Light south wind.  The remaining Peregrines are both females. 

2019.0617.1Female chicks tend to make first flight a number of days later that the young males.  Both females were seen lounging in the nest box as late as 8:45PM on Sunday night.  It looks like the female chick with the 65/BV leg band departed first thing this morning!  The second female had a nice meal dropped off by the adult female around 6:45AM.  She continued to exercise her wing muscles.  She moved all around the nest box, and hopped out onto the perch pole.  At times she moved to the outer length of the pole and just barely in sight of the web cam.  She finally launched into flight late morning!

Lawrence Peregrines: Day 43

June 16, 2019 in Near the Clock Tower

The remaining two Peregrines started off Father’s Day under overcast skies, light rain, and temp at 64F.  The day ahead calls for mostly cloudy skies with a few scattered showers around midday and into the afternoon. Still mild, but a bit cooler than Saturday with highs around 70!

2019.0616.1The two remaining chicks were seen in the nest box all day.  They are so ready to make first flight! One of the chicks hopped out onto the perch pole and was flapping vigorously, but not quite ready to launch into flight. The web cam will continue to operate, but little chance we will see any further action through the cam.  The chicks will be seen over the next many weeks in and around the area near the Clock Tower.  The chicks will be learning to fly while the parents continue to feed them. The young falcon, as it launches into the world, is a most handsome bird, and when the last vestiges of down are shed from the head, it has the regal appearance of the adult. The eyes have by now, taken on that extraordinary quality of lustrous vitality and intense watchfulness that even the best paintings cannot capture in its fullness.

Literature cited:

Ratcliffe, D. 1993. The Peregrine Falcon. 2nd ed. Carlton, England: T. and A. D. Poyser.

Lawrence Peregrines: Day 41/42

June 15, 2019 in Near the Clock Tower

The remaining two Peregrines started off the day under fair skies, bright sun, Sw wind at 5MPH, and temp at 59F. The day ahead calls for mostly sunny, with a high near 83. Southwest wind 6 to 13 mph, with gusts as high as 28 mph. Tonight, a chance of showers, mainly after 3am. Increasing clouds, with a low around 62. Southwest wind 7 to 10 mph, with gusts as high as 22 mph. 

2019.0614.2Many have asked, how do the chicks know when to fledge and make first flight?  What prompts the final push to launch out into the world forms he nest box? From what researchers have observed over the years, there is likely little particular action by the parent peregrines to induce their young to fly. The adults may reduce the food rations at this time, for the young are quite fat. Generally, the chicks fly when they are ready and moved by their own instinct. The first flight can be quite strong, but when it lands on a nearby perch, it may remain for many hours.  Food calls are exchanged, and the parent keeps close tabs from nearby. For a chick that has survived a fall from the nest, the adults will find, feed, and protect the chick until it is ready to fly away.

Literature cited:

Ratcliffe, D. 1993. The Peregrine Falcon. 2nd ed. Carlton, England: T. and A. D. Poyser.

Lawrence Peregrines: Day 40

June 13, 2019 in Near the Clock Tower

The two remaining Peregrines started off the day under overcast skies, light wind, and temp at 56F.  The forecast calls for rain, mainly after 9am. Patchy fog between 2pm and 3pm. High near 63. Light southeast wind becoming east 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Tonight, rain likely before 7pm, then a chance of showers, mainly between 7pm and 11pm. Patchy fog before midnight. Otherwise, mostly cloudy, with a low around 54. Northeast wind 5 to 7 mph becoming southwest after midnight. 

2019.0613.2Now the first chick has fledged and the other two will follow shortly! Just after 6AM this morning, the female dropped off prey and the two chicks went into a scrum to attack the food.  The rumbled with each other over the food in a tug of war….quite a show. The remaining two continue vigorous wing flapping as they perch at the outer edge of nest box and look for their sibling nearby. First flight may happen at any time of day. The males will typically fledge first, and the females just a bit after, but not always the case.

Literature cited:

Ratcliffe, D. 1993. The Peregrine Falcon. 2nd ed. Carlton, England: T. and A. D. Poyser.

 

Lawrence Peregrines: Day 39 – male fledges…1st flight!

June 12, 2019 in Near the Clock Tower

The Peregrines started this morning off under fair skies, bright sun, calm wind conditions, and temp at 53F.  The forecast calls for sunny skies, with a high near 79. Light and variable wind becoming south around 6 mph in the afternoon. Tonight, partly cloudy, with a low around 52. South wind around 6 mph becoming calm after midnight.

2019.0612.3-001The first chick fledged some time last night of first thing this morning….right on schedule!  Checked in on the chicks just about 6:30PM through the New Balance Falcon Cam.  All three were observed inside the nest box. At 6;30 this morning, only two were left in the box! The first chick has launched into first flight and left the nest box. This cover photo shows the two remaining chicks and this photos shows the three of them together last night. The fledged chick was nowhere to be seen in and around the general area.  They do tend to stay very close at first!

Lawrence Peregrines: Day 38….ready for flight!

June 11, 2019 in Near the Clock Tower

The Peregrines started off the day under overcast skies with and fog, wind SE at 6MPH, and temp at 65F.  The forecast calls for showers and possibly a thunderstorm before 11am, then a chance of showers between 11am and 2pm. Patchy fog between 10am and 11am. High near 76. Southeast wind 5 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Tonight, mostly clear, with a low around 51. Northwest wind 5 to 10 mph, with gusts as high as 22 mph.

2019.0612.1Just before 6AM, the three chicks were observed hanging on the outer ledge of the nest box, gazing westward.  The preen a bit, jump around, bob and turn their heads, and continue with vigorous wing flapping.  Fledging, or first flight is close at hand, and they seem to know they are ready to launch into flight. Overall, the female chicks develop more slowly than males, and retained their lingering down just a bit longer.  Age at first flight varies from 5 to 6 weeks.  One researcher found an average of 40 days, with males usually flying before females. The normal range runs about roughly 38 -46 days based on some observations, with many peregrines in Eastern Mass. making first flight, on average, around 40 days. Stay tuned!

Literature cited:

Ratcliffe, D. 1993. The Peregrine Falcon. 2nd ed. Carlton, England: T. and A. D. Poyser.