Date: 9/16/26 7:54 pm
From: Barbara Volkle <barb620...>
Subject: [MASSBIRD] Wachusett Mountain (16 Sep 2026) 32 Migrating Raptors
Date: Thu, 17 Sep 2026 00:00:07 +0000
From: <reports...>
Subject: Wachusett Mountain (16 Sep 2026) 32 Migrating Raptors


Wachusett Mountain
Princeton, Massachusetts, USA
Daily Raptor Counts: Sep 16, 2026
-------------------------------------------------------------------

Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 0 4 4
Turkey Vulture 0 0 0
Osprey 10 52 60
Bald Eagle 0 80 93
Northern Harrier 0 9 10
Sharp-shinned Hawk 3 160 161
Cooper's Hawk 4 19 22
American Goshawk 0 0 0
Red-shouldered Hawk 1 8 11
Broad-winged Hawk 11 1431 1444
Red-tailed Hawk 2 5 5
Rough-legged Hawk 0 0 0
Golden Eagle 0 0 0
American Kestrel 0 33 34
Merlin 0 6 6
Peregrine Falcon 1 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: 32 1873 1924
----------------------------------------------------------------------

Observation start time: 08:15:00 Observation end time: 15:00:00 Total
observation time: 6.75 hours

Official Counter: Eric Mueller

Observers: Bryan DiFabio, Fay Baird, Jack Miano, Jean Hampel,
John Liller, Lena Ficco, Lisa Burwell, Ryan Doherty,
Scott Carlson, Steve Farrell, Tom Gottschang

Visitors:
Thanks to all of the observers above who put spent long hours looking for
just a few birds. We also got help from long-time area birder David, Mary
and Dave from Reading, and Susan Trantafillou.

Probably 60-80 hikers and sightseers today.


Weather:
A strange day - instead of the 7-9 mph winds that were predicted, we
started the day with 10-12 mph winds with regular gusts in the 16-22 mph
range. Then at 11 am EST, the winds abruptly dropped to 3 mph, and rarely
got higher than 5 mph the rest of the day. The cloud cover was high and
relatively thin, so there was likely decent thermal uplift. The humidity
was higher than the last few days, which yielded light to moderate haze.
Temps rose from 57 to 77 F.

Raptor Observations:
We could understand birds being reluctant to fly up into the strong gusty
winds at the beginning of the day, but we were puzzled and disappointed
that more birds didn't come up after the winds dropped down around midday.
We even stayed an extra hour to 3 pm EST just in case birds might come
through late, but got almost nothing. Then to find out that Mt Watatic and
Pack Monadnock both got big flights in the hour after we left...sigh!!!

Non-migrating raptors:
TV-6 (maybe more), Bald Eagle-5 (2 Ad, 1 sub-adult, 1 Imm, 1 Juv),
Broad-wing-1, Red-shoulder-2 (1 Ad, 1 Juv), Red-tail-3.

In celebration of our 50th anniversary year on Wachusett, here's a look
back at events on this date:
In 1980, the 5th largest Sharp-shinned Hawk flight (159) at Wachusett Mt

In 1984, the 19th largest Broad-wing flight (4,979) and the 19th largest
total raptor flight (5,083) at Wachusett Mt

In 1987, the 16th largest Broad-wing flight (5,368) and the 17th largest
total raptor flight (5,455) at Wachusett Mt

Non-raptor Observations:
Non-raptors: Comm Raven-4 (maybe more), Gr Catbird-1, Amer Goldfinch-1, E
Towhee-2

Predictions:
Thursday's forecast calls for more clouds, high humidity and temps in the
low 70's, with light winds starting the day from the ENE and swinging
around to the SSW by 1:00 pm EST. Rain is expected to start by 3:00 PM,
but we should be able to get in a nearly full day of observation. Hopefully
some of today's late flight up north lingered overnight for us to see.
========================================================================
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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