2003 Observation Data for All Migration Projects

This chart represents the observation totals from all established HawkWatch International migration field sites in 2003.  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.

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Chelan

Bonney

Bridger

Goshute

Wellsville

Commissary

Lipan

Yaki

Sandia

Manzano

Corpus

Smith

Curry

Ridge

Butte

Mts.

Mts.

Mts.

Ridge

Point

Point

Mts.

Mts.

Christi

Point

Hammock

Veracruz

WA

OR

MT

NV

UT

WY

AZ

AZ

NM

NM

TX

TX1

FL1

MX2

Years

'97-'03

'94-'03

'91-'03

'83-'03

'77-'03

'02-'03

'91-'03

'97-'03

'85-'03

'85-'03

'97-'03

'97-'03

'99-'03

'92-'03

Raptors / 10 hrs - prev. avg.

55.9

80.6

83.2

223.5

102.0

99.1

129.4

94.6

76.7

103.1

10738.0

780.2

399.6

-

Raptors / 10 hrs - 2003

29.7

94.8

51.8

200.1

74.2

64.4

103.6

122.9

93.8

112.6

11320.4

410.0

386.8

-

Turkey Vulture

30

488

0

466

18

66

-

-

2128

468

22900

2163

-

2040546

Black Vulture

-4

-

-

-

-

-

-

-

-

-

241

96

-

-

Osprey

31

97

5

96

14

31

75

50

79

86

199

78

1431

2981

Northern Harrier

66

28

54

127

442

25

56

35

59

50

98

203

531

134

Swallow-tailed Kite

-

-

-

-

-

-

-

-

-

-

22

98

21

203

White-tailed Kite

1

-

-

-

-

-

-

-

0

-

1

18

-

-

Mississippi Kite

-

-

-

-

-

-

-

-

0

-

9753

3809

14

210432

Plumbeous Kite

-

-

-

-

-

-

-

-

-

-

-

-

-

1

Hook-billed Kite

-

-

-

-

-

-

-

-

-

-

1

1

-

118

Snail Kite

-

-

-

-

-

-

-

-

-

-

-

-

-

0

Unknown kite

-

-

-

-

-

-

-

-

0

-

-

-

-

0

Sharp-shinned Hawk

421

1578

416

3460

871

516

1263

2323

459

1861

1193

1508

2195

2639

Cooper's Hawk

136

473

132

2281

441

329

765

1673

797

1758

1083

738

348

1982

Northern Goshawk

17

29

23

16

33

7

0

2

31

12

0

0

-

0

Unknown accipiter

93

35

33

271

71

146

82

156

12

215

344

4

19

157

Gray Hawk

-

-

-

-

-

-

-

-

-

-

-

-

-

116

Common Black Hawk

-

-

-

-

-

-

-

-

-

-

-

-

-

2

Harris' Hawk

-

-

-

-

-

-

-

-

-

-

6

0

-

12

White-tailed Hawk

-

-

-

-

-

-

-

-

-

-

6

23

-

2

Zone-tailed Hawk

-

-

-

-

-

-

2

-

3

0

7

-

-

138

Short-tailed Hawk

-

-

-

-

-

-

-

-

-

-

-

-

16

0

Roadside Hawk

-

-

-

-

-

-

-

-

-

-

-

-

-

0

Red-shouldered Hawk

-

1

-

0

-

-

-

-

-

-

26

49

5

6

Broad-winged Hawk

3

6

9

58

1

5

6

14

12

16

684815

21799

5237

1772479

Swainson's Hawk

15

0

2

908

102

28

108

147

111

53

5633

228

44

1197850

Red-tailed Hawk

263

744

113

3903

881

1042

1791

1264

663

924

192

64

1

127

Ferruginous Hawk

-

-

1

20

12

3

6

6

2

7

1

2

-

1

Rough-legged Hawk

14

10

22

1

0

7

0

0

3

0

0

0

-

-

Unidentified buteo

39

18

6

57

36

83

20

42

3

30

71

6

7

10426

Golden Eagle

142

108

1226

181

156

233

17

11

689

146

2

-

3

Bald Eagle

1

68

93

9

1

90

12

14

23

8

1

2

15

0

Unidentified eagle

12

0

4

0

0

7

0

0

0

1

0

1

-

0

Crested Caracara

-

-

-

-

-

-

-

-

-

-

21

8

-

1

American Kestrel

33

19

102

1768

515

355

1300

943

299

686

860

816

2130

4736

Merlin

21

84

4

33

13

6

9

17

17

22

57

79

459

108

Prairie Falcon

19

8

15

14

23

5

3

5

20

20

15

0

-

-

Peregrine Falcon

14

14

10

9

17

3

8

7

105

112

169

88

2858

661

Aplomado Falcon

-

-

-

-

-

-

-

-

0

-

3

-

-

-

Unknown falcon

8

2

4

13

3

3

1

1

0

6

47

3

66

90

Unidentified raptor

134

7

20

79

29

70

23

23

6

21

133

1

57

41891

TOTAL COUNT

1513

3817

2294

13770

3679

3060

5547

6733

5533

6502

727900

31885

15331

5287842

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 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.
4 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.