Science

Hawk Mountain Raptor Count

Annual Raptor Migration


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Annual Autumn Hawkwatch: Daily, August 15 - December 15
Spring Migration: Daily, April 1-May 15

  • Autumn hawk flights are best on days with northwest wind following a cold front.
  • The Daily Count is posted after 6 pm.
  • You can hear tomorrow's weather forecast and flight prediction by calling 610-756-6000 x6 after 6 pm.

Please contact Hawk Mountain Sanctuary for questions about our count data or to use this data for scientific research.

View By Year

View By Day

  • Species Count for 05/15/2013 Season Count To-Date Previous Week’s Count Highest Daily Count This Season
  • Black Vulture 0 99 4 13
  • Turkey Vulture 0 54 0 15
  • Unidentified Vulture 0 0 0 0
  • Osprey 0 95 2 10
  • Bald Eagle 0 40 1 7
  • Northern Harrier 4 46 4 4
  • Sharp-shinned Hawk 0 135 0 21
  • Cooper's Hawk 2 92 4 10
  • Northern Goshawk 0 2 0 1
  • Unidentified Accipiter 0 34 0 5
  • Red-shouldered Hawk 0 13 1 2
  • Broad-winged Hawk 5 458 8 64
  • Red-tailed Hawk 1 154 8 11
  • Rough-legged Hawk 0 1 0 1
  • Unidentified Buteo 0 84 5 13
  • Golden Eagle 0 0 0 0
  • Unidentified Eagle 0 1 0 1
  • American Kestrel 0 28 0 4
  • Merlin 0 5 1 1
  • Peregrine Falcon 0 6 0 2
  • Mississippi Kite 0 0 0 0
  • Unidentified Falcon 0 11 0 4
  • Unidentified Raptor 0 52 0 8
  • Other Raptor 0 1 0 1
  • Total Count: 12 1411 38 126
  • Species Count for 05/15/2013 Season Count To-Date Previous Week’s Count Highest Daily Count This Season

  • Comments:

    Indigo Bunting, cormorants, Great Crested Flycatcher, Scarlet Tanager, Black-and-White Warbler on the last night of count

  • Weather:

    Drizzly a.m. and sunny p.m.

  • Wind Direction:

    SE

  • Wind Speed:

    3-8 kmph

  • HawkCount.org
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