Date: 9/10/17 7:06 pm
From: <reports...>
Subject: [NHBirds] Pack Monadnock Raptor Migration Observatory (09 Sep 2017) 887 Raptors
Pack Monadnock Raptor Migration Observatory
Peterborough, New Hampshire, USA
Daily Raptor Counts: Sep 09, 2017

Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 0 0 0
Turkey Vulture 0 0 0
Osprey 7 27 27
Bald Eagle 0 10 10
Northern Harrier 2 5 5
Sharp-shinned Hawk 24 40 40
Cooper's Hawk 2 5 5
Northern Goshawk 0 0 0
Red-shouldered Hawk 0 1 1
Broad-winged Hawk 843 888 888
Red-tailed Hawk 1 3 3
Rough-legged Hawk 0 0 0
Golden Eagle 0 0 0
American Kestrel 2 2 2
Merlin 2 2 2
Peregrine Falcon 2 2 2
Unknown Accipiter 0 0 0
Unknown Buteo 0 0 0
Unknown Falcon 0 0 0
Unknown Eagle 0 0 0
Unknown Raptor 2 4 4

Total: 887 989 989

Observation start time: 07:30:00
Observation end time: 16:45:00
Total observation time: 9.25 hours

Official Counter: Katrina Fenton

Observers: Cynthia Nichols, Glen & Lori Chretien, Janet Delaney,
Judd Nathan, Marie Matrano, Mark Timmerman,
Michael Burgess, Mike Gebo, Tom Delaney, Tom Warren


The day dawned with temperatures hovering just under 50F, a fresh breeze
blowing out of the northwest, and partly cloudy skies. Cumulus shoved and
jostled their way overhead, squishing out all but a few pockets of blue by
early afternoon and dropping a few pockets of drizzle before partially
clearing to end the day.

Raptor Observations:
Two Ospreys started off the day, rising together and letting any migrant
within view that there was lift to be had. Before long, Sharp-shinned Hawks
and small groups of Broad-winged Hawks began to lift from the valley. A
Merlin streaked by later in the morning, the first countable falcon of the
season. Both of our other expected falcon species came past a short while
later, the two Peregrine Falcons skirting close to Pack. 54 Broad-winged
Hawks were counted by 1pm (EDT), a respectable count for this early in the
season, but things were about to change. Over the next two hours, kettles
grew from 7 birds, to 20 birds, to 60 birds, to well over 100 birds,
setting a new record for a flight this large this early in the season.

Non-raptor Observations:
Warblers filled the morning skies with small forms and chip notes after a
night of migration. Most were past the mountain or settled into the trees
before the first raptors of the day began to rise. Two Common Nighthawks
foraged in front of a towering thunderhead over North Pack late in the

Non-raptor migrants:
Canada Goose- 4
Common Loon- 1
Great Blue Heron- 1
Chimney Swift- 1
Ruby-throated Hummingbird- 10
Common Nighthawk- 2
Tree Swallow- 2
Barn Swallow- 5
Black-throated Green Warbler- 3
Blackpoll Warbler- 6
Cape May Warbler- 1
Northern Parula- 4
Blackburnian Warbler- 1
Tennessee Warbler- 3
Yellow-rumped Warbler- 2
warbler sp.- 32
Purple Finch- 1
passerine sp- 2

Monarch Butterfly- 23

Report submitted by Katrina Fenton (<gosknits...>)
Pack Monadnock Raptor Migration Observatory information may be found at:

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