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Hawk
Watch at Pilot Mountain State Park
For more than 35 years, members of Audubon Society of Forsyth County
have been observing the fall migration of Broad-winged Hawks
and other raptors from Little Pinnacle at Pilot Mountain State
Park in Surry County. A few Broad-winged Hawks (or broadwings)
breed locally but most nest in the forests of Ontario, Quebec
and the northeastern United States. Each fall, they ride the
thermals and mountain updrafts along the Appalachian ridges
on their way to their winter grounds in Central and northern
South America.
At
Pilot Mountain, observers can see these birds and about a
dozen other raptor species on their journey south. Sometimes,
the birds pass by in small kettles or groups of 5, 10, 30
or so. Occasionally, the kettles include 100s or even 1000s
of birds. Typically, 2000 - 5000 hawks fly by the mountain
each fall. However, on one day in 1993 nearly 11,000 broadwings
sailed by. In 2006, observers counted a single kettle of nearly
1800 birds.
History
of the Pilot Mountain Hawk Watch
Toby
Gordon has been watching the hawk migration from Little Pinnacle
at Pilot Mountain State Park for 20 years. He recount how,
on October 4, 1973, Ramona Snavely and members of Forsyth
Audubon made a field trip to Pilot Mountain State Park. Pilot
Mountain had just opened in 1968 as North Carolina's fourteenth
state park, so perhaps the group was checking to see what
migrants might be present. While at the Little Pinnacle Overlook,
the group saw something unexpected: a kettle of Broad-winged
Hawks drifting southwest over the mountain.
According
to Toby, Ramona recognized the importance of the sighting
and returned in following years to study the raptor migration.
She wrote papers about the site, collected hawk migration
data and joined with Janice Levitt in arguing for the protection
of the park's Big Pinnacle due to the presence of nesting
Common Ravens. Since that day in 1973 many people have shared
their time and talent to support Pilot Mountain's hawk watch,
but Ramona Snavely started it all.
Pilot
Mountain Raptors
Pilot
Mountain State Park is one of about 200 sites that submit
data to the Hawk Migration Association of North America, an
"organization committed to the conservation of raptors through
scientific study, enjoyment and appreciation of raptor migration".
As Toby says, "the presence of migrating raptors at the park
is interesting since the site is more than 20 miles south
of the Blue Ridge Mountains. It is unclear why southbound
raptors would deviate from their path along the Appalachians,
and yet they do." During the ten years from 1991 through 2000,
the average count was about 4500 migrants with about 110 hours
of observations. Of these, 95% were Broad-winged Hawks, followed
by Sharp-shinned Hawks (1%), Osprey (0.7%) and Cooper's Hawks
(0.5%).
Thirteen
species of raptors are seen regularly at Pilot Mountain. In
addition to the four previously mentioned, they include: Bald
Eagle, Northern Harrier, Red-tailed Hawk, Red-Shouldered Hawk,
Peregrine Falcon, Merlin, American Kestrel, Turkey Vulture
and Black Vulture. Most migrating raptors are seen between
mid-September and mid-October, with the peak of the Broad-winged
Hawk migration usually occurring between September 20 and
September 30. Look for clear cool days with winds out of the
north. Visitors to the Little Pinnacle Overlook may also see
resident Common Ravens as well as a variety of passerines
- notably warblers and perhaps an occasional Red-headed Woodpecker.
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Other
Nearby Hawk Watch Sites
Mahogany
Rock - Blue Ridge Parkway, Milepost 235. Jim Keighton and
other members of Blue Ridge Birders have been watching hawks
for several years at this site just above Roaring Gap, NC.
Contact: Jim Keighton, brbirders@skybest.com.
Lenoir,
NC - Next to Parkway Bank on Wilkesboro Blvd. Contact: Sonny
Hines, 828-302-3666, shine@nelsonlubricants.com.
This is a new site, beginning in Fall 2008.
Harvey's
Knob - Roanoke, Virginia, Blue Ridge Parkway between Mileposts
94 and 95. Contact: bijame@gmail.com,
http://www.bjame.googlepages.com.
Hawk
Migration Resources
Guidelines
for Hawk Watch at Pilot Mountain by Toby Gordon
Observation
data for Pilot Mountain and other Hawk Watch sites: http://www.hawkcount.org
General
and species-specific information about hawk migration in North
America: http://www.hmana.org
Hawk migration
learning resources and Raptor ID Quiz: http://www.hawkmountain.org
Veracruz
"River of Raptors," Prof. Rob Bierregard, UNCC: http://www.bioweb.uncc.edu/bierregaard/raptor_river.htm
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