During the fourth week after hatching, peregrine falcon chicks (eyases) continue to undergo significant changes in preparation for fledging. Day 22-24: – Feather Development: By now, the chicks have a substantial amount of juvenile feathers, especially on their wings and back. The down feathers are mostly replaced by these juvenile feathers, which are darker and […]
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During the third week after hatching, peregrine falcon chicks (eyases) continue to experience significant physical and behavioral development. Day 15-17: Feather Development: The down feathers are gradually replaced by darker juvenile feathers, especially on the wings and back. These juvenile feathers are more streamlined and will eventually aid in flight. Increased Size: The chicks continue […]
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The growth and development of peregrine falcon chicks during the first two weeks after hatching are rapid and fascinating. Here’s a detailed overview: First Week (Days 1-7) Day 1-2: – Hatching:The chicks, known as eyases, hatch after about 33-35 days of incubation. They emerge from their eggs with the help of an egg tooth, a […]
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Mon. April 8, 2024 under clear skies, wind SW at 3MPH, and temp at 39F. Had a nice visit looking to get an update on the local peregrines with breeding season getting in full swing! After a full tour around the Ayer Mill Clock Tower, moved on to scout out other nearby regular perch locations. […]
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May 22, 2023 just after 10AM, under clear skies, wind NE 15MPH, and temp at 60F. The female was spotted on the west side of the Clock Tower on a regular ledge to the upper left of the Clock Tower west face. May 23, 2023 just after 6PM, the young female was seen perched on […]
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May 15, 2023 under sunny and clear skies, wind from W at 10MPH with gusts, and temp at 72F. The female was seen just before 10AM perched near the top of the red brick Pacific Mills smokestack. May 16, 2023 under mostly clear skies, wind SW at 13MPH, and temp at 64F. Finally we have […]
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May 2, 2023 under overcast skies, wind from E at 8MPH, and temp at 51F. The sightings of the Lawrence Peregrines have been less regular compared to eight weeks. The first stop today was around the Pacific Mills red brick smoke stack. The young female was seen moving around the gear near the top. This […]
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April 24, 2023 under overcast skies, light rain, wind E at 5MPH, and temp at 52F. Made a late afternoon visit, started on the north side of the river, and scanned all of the usual perch locations. Found a falcon perched on the Clock Tower and moved closer for better looks. Turned out to be […]
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Hi, Craig! This site is spectacular! I am working with the 21 st Century program at the Wetherbee School doing a river study of the Merrimack. We took our students on their first barge ride yesterday up river and saw a red tail chasing a great blue heron, many hawks, geese, mallards, and other birds. A rainbow on the way back. I had no idea there were kestrels in the area, nor did I know of the peregrines. My brother ( Craig, also!) has a live video feed of a nest at the top of the Marriott in Boston. I’m wondering if you had time to come share your knowledge with our 3 rd and
4 th graders at the Wetherbee some day after school? If not, I’ll have them blog you on this site. Btw. I live in a lake in Tyngsboro and witnesses a pair if swans harassing some Canada geese this morning. Can they move! I could go on and on about our wildlife, but that’s for another day. Can’t wait to visit the rookery in NA. Thanks again for your site. Kate Oliver
I love this site..
I have added this page to my favorites and will check regularly
thanks!
Craig
Such a pleasure talking with you and seeing your incredible photos here! I will save this page to my favorites and check it every day !
Have a great day….
Linda