Date: 9/17/26 5:09 pm
From: Barbara Volkle <barb620...>
Subject: [MASSBIRD] Wachusett Mountain (17 Sep 2026) 8 Migrating Raptors
Date: Thu, 17 Sep 2026 21:11:36 +0000
From: <reports...>
Subject: Wachusett Mountain (17 Sep 2026) 8 Migrating Raptors


Wachusett Mountain
Princeton, Massachusetts, USA
Daily Raptor Counts: Sep 17, 2026
-------------------------------------------------------------------

Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 1 14 14
Turkey Vulture 0 0 0
Osprey 1 53 61
Bald Eagle 0 80 93
Northern Harrier 0 9 10
Sharp-shinned Hawk 2 162 163
Cooper's Hawk 0 19 22
American Goshawk 0 0 0
Red-shouldered Hawk 0 8 11
Broad-winged Hawk 2 1433 1446
Red-tailed Hawk 0 5 5
Rough-legged Hawk 0 0 0
Golden Eagle 0 0 0
American Kestrel 2 35 36
Merlin 0 6 6
Peregrine Falcon 0 7 7
Unknown Accipitrine 0 5 5
Unknown Buteo 0 8 11
Unknown Falcon 0 7 7
Unknown Eagle 0 0 0
Unknown Raptor 0 39 44

Total: 8 1890 1941
----------------------------------------------------------------------

Observation start time: 08:15:00 Observation end time: 13:00:00 Total
observation time: 4.75 hours

Official Counter: Mark Morris

Observers: Cindy Rost, Dallas Wait, Joanne Hart

Visitors:
Thanks to the observers listed above for perservering in the low-light
conditions. We also got valuable help from David Proietti and Dorothy
Maece. Bob Heppler and Chris Holmes stopped by to see how things were
going.


Weather:
Partly sunny skies at the outset with increasing clouds to complete
overcast at conclusion. Temperatures ranged from 70-78 F. Winds were very
light from the South - calm to 7mph. Visibility was limited with persistent
haze and some intermittent low clouds. Showers imminent to the West led to
our early departure.
Raptor Observations:
Today�s weather seemed less than appealing to migrating Raptors in our
area. Locals TV�s rose up together in the first hour and proceeded to
provide the most attention, continually circling the summit. We had local
Red Shoulders, Red Tails, and a local Broad Wing testing our skills in
marginal light. The 2 migrating Kestrels gave us good views, passing low
just past the platform.

Non-migrating raptors: TV-14, Osprey-1, Red-shoulder-2, Broad-wing-1,
Red-tail-2

In celebration of our 50th anniversary year on Wachusett, here's a look
back at events on this date:
In 1981, the largest American Kestrel flight ever (53) and the 6th largest
Sharp-shinned Hawk flight (158) at Wachusett Mt

In 1982, the largest American Goshawk flight ever (5) at Wachusett Mt

In 1984, the 2nd largest Broad-wing Hawk flight (17,415) and the 2nd
largest total raptor flight (17,517) at Wachusett Mt

In 1987, the 6th largest Broad-wing flight (10,095) and the 6th largest
total raptor flight (10,226) at Wachusett Mt

In 2002, Jane Stein wrote:
"A disappointing day initially, with about 50 birds/hour, until about 2:45
PM EST, when Broadwings suddenly started appearing in good numbers and
continued till around 4 before tapering off. Flight was disorganized and
very difficult to monitor and count, with loose kettles forming and
reforming, birds coming into and out of kettles at all heights, bypassing
them entirely either above or below, etc." (Eric�s note: 2,181 total
raptors, including 2,085 Broad-wings, 43 Sharp-shins and 34 Ospreys) "Two
notable birds-- a male AK (presumably a HY bird, since it tried to eat a
passing Monarch) was observed around noon EST packing an antenna on his
back. And a dark-morph Broadwing was clearly seen low and in excellent
light by several observers around 4 PM EST."

In 2015, the 15th largest Broad-wing flight (5,433) and the 15th largest
total raptor flight (5,506) at Wachusett Mt

In 2023, the 14th largest Broad-wing flight (6,395) and the 14th largest
total raptor flight (6,453) at Wachusett Mt. Eric Mueller wrote:
"The Broad-wings started coming through in small numbers for the first 90
minutes, and then the kettles started to come through in earnest. As the
wind shifted to W and WSW, many of the Broad-wings began approaching us
from almost due East, and a fair number passed by us to the South. Although
many birds were spotted far out and far up, an unusually large number
streamed by low enough that we could use the radio towers as counting
posts. We had at least 14 kettles/streams of 100 birds or more, including
groups of approx. 180, 200, 300, 400 and 800 birds each. Quite a few
kettles streamed off high up, only to kettle up again still quite high up,
which probably indicated strong thermal activity. Ospreys came by in better
numbers than usual."

Non-raptor Observations:
Non-raptors:
Chimney Swift-3, Blue Jay-3, Comm Raven-7, G.Catbird-1, warbler Species-3,
E.Towhee-4 (2 ad., 2 juv.)

Predictions:
Hopefully a much better count on Friday. A weak cold front will pass
through overnight, bringing slightly lower temps and humidity, with sunny
skies and solid 9-10 mph NNW to NW winds. NW winds typically bring us good
flights.
========================================================================
Report submitted by ERIC MUELLER (<ericmueller1912...>)
Wachusett Mountain information may be found at:
http://www.massbird.org/emhw


More site information at hawkcount.org:
https://hawkcount.org/siteinfo.php?rsite=228

 
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