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2002 Observation Data for All Migration Projects

This chart represents the observation totals from all established HawkWatch International migration field sites in 2002. These data are the property of HawkWatch International and its collaborators, and may not be used without written permission from HawkWatch International. Please contact HawkWatch International for permission to use these data.

Note: This is a large table that may take a few moments to load, so if it does not appear immediately, please be patient.

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Chelan Bonney Rogers Bridger Goshute Commissary Jordanelle Wellsville Lipan Yaki Sandia Manzano Corpus Smith Curry
Ridge Butte Pass Mts. Mts. Ridge Reservoir Mts. Point Point Mts. Mts. Christi Point Hammock Veracruz
WA OR MT MT NV WY UT UT AZ AZ NM NM TX TX 1 FL 1 MX 2
Year Begun / Total Years 1997 / 6 1994 / 9 1988 / 12 1991 / 12 1983 / 20 2002 1997 / 6 1977 / 18 1991 / 12 1997 / 6 1985 / 18 1985 / 18 1997 / 6 1997 / 6 1999 / 4 1992 / 11
Start Date 25 Aug 27 Aug 1 Mar 27 Aug 15 Aug 27 Aug 25 Feb - 27 Aug 27 Aug 22 Feb 27 Aug 15 Aug 15 Aug 15 Sep 20 Aug
End Date 25 Oct 31 Oct 31 Mar 31 Oct 5 Nov 29 Oct 19 May - 5 Nov 5 Nov 3 May 5 Nov 15 Nov 15 Nov 13 Nov 20 Nov
Observation Days 55 59 26 58 81 45 70 0 3 69 71 67 57 88 91 60 82
Observation Hours 491.3 423.7 167.5 365.8 725.8 322.7 488.8 0 557.7 585.7 527.8 518.5 676.3 775.7 478.3 -
Raptors / 10 hrs - 2002 52.2 45.4 66.8 55.6 156.4 99.1 45.2 - 90.1 96.8 62.4 97.2 7,815.8 1,044.10 294.4 -
Raptors / 10 hrs - prev. avg. 53.6 85.0 81.9 83.9 227.0 - 90.0 - 133.0 94.2 77.6 103.5 11,322.4 727.4 399.6 -

COUNTS BY SPECIES

Turkey Vulture 46 286 0 0 243 97 961 - - 4 - 4 1227 239 42,536 678 - 2,677,355
Black Vulture - 5 - - - - - - - - - - - 470 59 0 -
Osprey 57 50 0 2 83 11 54 - 58 57 38 32 146 48 1,657 2,694
Northern Harrier 148 27 0 15 154 32 31 - 51 45 55 33 109 144 451 269
Swallow-tailed Kite - - - - - - - - - - - - 57 150 8 272
White-tailed Kite - - - - - - - - - - - - 4 8 - 2
Mississippi Kite - - - - - - - - - - - - 8,394 7,879 14 306,274
Plumbeous Kite - - - - - - - - - - - - - - - 2
Hook-billed Kite - - - - - - - - - - - - - - - 165
Snail Kite - - - - - - - - - - - - - - - 5
Unknown kite - - - - - - - - - - - - - - - 0
Sharp-shinned Hawk 937 600 4 288 3,009 675 61 - 1,455 1,932 337 1,524 1,869 3,142 1,856 3,152
Cooper's Hawk 234 233 1 103 2,369 409 65 - 599 891 506 1,149 645 1,233 289 2,030
Northern Goshawk 22 8 4 2 11 21 6 - 5 6 7 23 1 - - 1
Unknown accipiter 144 33 0 20 257 100 77 - 245 239 25 202 108 18 30 78
Gray Hawk - - - - - - - - - - - - - - - 326
Common Black Hawk - - - - - - - - - - - - 1 - - 7
Harris' Hawk - - - - - - - - - - - - 10 0 - 4
White-tailed Hawk - - - - - - - - - - - - 4 8 -
Zone-tailed Hawk - - - - - - - - 1 1 3 1 2 0 - 142
Short-tailed Hawk - - - - - - - - - - - - 0 0 37 3
Roadside Hawk - - - - - - - - - - - - - - - 1
Red-shouldered Hawk - 0 - - 0 - 1 - 0 0 - - 92 23 1 7
Broad-winged Hawk 9 1 0 3 58 8 1 - 20 8 4 9 464,772 65,255 5,194 2,389,232
Swainson's Hawk 7 0 0 1 91 82 22 - 33 16 54 139 7,912 168 36 1,009,648
Red-tailed Hawk 386 425 37 78 3,008 823 444 - 1,302 1,234 321 778 182 44 2 146
Ferruginous Hawk 0 0 2 0 20 6 5 - 2 6 7 14 2 1 - 2
Rough-legged Hawk 45 6 9 11 6 5 6 - 1 2 1 0 0 0 - -
Unidentified buteo 82 48 1 9 42 17 65 - 33 43 1 32 80 5 6 56,305
Golden Eagle 135 56 916 1,359 330 352 53 - 32 23 366 149 1 0 - 3
Bald Eagle 8 55 110 55 12 233 86 - 20 49 12 3 1 3 21 0
Unidentified eagle 0 7 24 15 0 10 31 - 3 1 0 0 0 0 0 0
Crested Caracara - - - - - - - - - - - - 12 7 - 2
American Kestrel 68 21 1 16 1,503 258 41 - 1,057 1,011 205 470 811 1,949 1,825 4,097
Merlin 38 38 2 2 39 9 0 - 4 5 5 22 18 56 609 117
Prairie Falcon 6 1 2 6 12 6 2 - 1 8 16 24 4 - - -
Peregrine Falcon 9 9 0 1 15 3 1 - 14 11 52 127 176 94 2,001 714
Unknown falcon 6 3 1 5 6 2 8 - 4 8 2 21 25 8 40 8
Unidentified raptor 178 15 3 43 81 38 189 - 83 71 49 49 98 5 1 120,956
TOTAL COUNT 2,565 1,922 1118 2,034 11,349 3,197 2210 - 5,023 5,667 3293 5,040 528,540 80,984 14,078 6,574,019

1 Project partners include the Gulf Coast Bird Observatory at Smith Point and Audubon of Florida at Curry Hammock.
2 Data provided by project partner Pronatura Veracruz; Hawk Mountain Sanctuary is also a partner.
3 The Wellsville project did not occur in 2002 due to last-minute recruitment difficulties, but will resume normally in 2003.
4 Due to high abundance of local birds and the difficulty of obtaining reliable and consistent counts of migrants, we no longer tally Turkey Vultures in the Grand Canyon.
5 Dashes indicate that the species has never occurred at the site, whereas zeros mean that the species does occur at the site but was not seen in the current year.