Revised 7/24/2010

All data is tentative and will be finalized at end of field season

Territory

Date(s)

Adults

Young

Number

Checked

Observer(s)

Location

Observed

Fledged

109

Numerous 

Domenech-Sumner

Clark Fork River

0 

inactive

1

3-19 

Fuller & Hudson

Clarks Fork River

2

Failed 

3

4/14 

Donofrio & Lockman

Bitterroot

2

36

Anderson

Hebgen Lake

45

Numerous 

Von Neida

Stillwater River

 2

3 

107

 4/3

Deavours-Sumner-Haynam-Johnson

Lake Koocanusa

 2

87

6/14 

Sumner-Shreading

Yellowstone River

2

unknown 

104

Check in 2012

Bighorn

90

Smith

Yellowstone River

99

Check in 2012

Bighorn

81

 7/23

Maples-Wenzel

East Front

2 

1

4

3/27 

Donofrio

Bitterroot

2

115

Check in 2012

Bighorn

94

3-1, 3-15,7/19

Davis-Sumner-Wenzel

Blackfoot River

2 

2
 

5

 4/23

Shortsleeve

Bitterroot

0

7

 4/1

Johnsen-Sumner-Haynam

Bull River

 0

114

Fleigly

Yellowstone River

82

 4/1

Johnsen-Sumner-Haynam

Clark Fork River

 0

113

 June

Gilbert

Smith River

 0

Inactive 

8

4/7 

Fleigly-Sumner-Shreading

Yellowstone River

2

3 

9

3-28, 7/11

Davis-Sumner

Blackfoot River

2

 2

6

 4/12

Fleigly-Sumner-Shreading

Boulder River

2 

117

 Numerous

Wightman

Missouri River

0 

96

 Numerous

Haynam

Clark Fork River

2 

2

12

Parks & Hall

Bighorn

116

Check in 2012

Bighorn

92

Check in 2012

Bighorn

119

Check in 2012

Bighorn

13

Check in 2012

Bighorn

77

4-20 

Brunsvold

Clark Fork River

2

112

 Numerous

Fleigly-Sumner-Shreading, MacCarter

Yellowstone River

 0

57

Check in 2012

Bighorn

15

3/24 

Seli-Wrobleski

Clark Fork River

 2

16

Check in 2012

Bighorn

18

4/1 

Hall-Sumner-Haynam

Clark Fork River

0
 

58

 3/26

Donofrio

Bitterroot

 1

105

Check in 2012

Bighorn

110

 Numerus

Dubois

Rock Creek

 2

0 

20

Hall

Red Lodge

98

Bockting & Benzel

Centennial Valley

93

4/24 

Wrobleski-Seli-Sumner

Clark Fork River

1 

21

Anderson

Hebgen Lake

22

Numerous

Davis-Sumner-Brunsvold-Wenzel

Blackfoot River

2

2

23

3-24 

Wrobleski-Seli

Clark Fork River

 1

71

Anderson

Hebgen Lake

24

4/15 

Donofrio

Bitterroot

2

88

4/2 

Hauge-Sumner-Haynam

Kootenai River

2 

26

Hall & Parks

Bighorn

79

 4/7

Sumner & Shreading

Jefferson River

1

27

Bockting & Benzel

Centennial Valley

61

 4/7

Fleigly-Sumner-

Boulder River

2

28

 6/3

Olson-Sumner

Flathead Reservation

 2

29

 4/16

Donofrio

Bitterroot

2 

30

3-19 

Fuller & Hudson

Clark Fork River

2 

1 

31

4/26 

Donofrio

Bitterroot

1

63

4/1 

Hall-Sumner-Haynam

Clark Fork River

1
 

32

 3-24

Seli-Wrobleski

Clark Fork River

2 

33

 4/23

Shortsleeve

Bitterroot

2

34

3-24 

Wrobleski-Seli

Clark Fork River

2 

100

Check in 2012

Bighorn

35

3-19, 3-27

Hudson & Haynam

Clark Fork River

1

2

37

 4/9

Sasse

Yellowstone River

2

95

 7/24

Heath & Jaquith

Red Lodge

2

2 

38

 6/9

Berry

Centennial Valley

2

39

5/5 

Berry-Lackey

Centennial Valley

 2

108

4/4 

Deavours-Sumner-Haynam-Johnson

Lake Koocanusa

 0

40

Numerous

Hall

Yellowstone River

 2

3

102

4-11 

Fleigly-Sumner-Shreading

Yellowstone River

 2

41

 Numerous

Donofrio

Bitterroot

1

 2

72

Numerous

Rockwell-Sumner

Flathead River

2

 0

106

Numerous 

Haynam

Clark Fork River

2 

3

97

Bockting & Benzel

Centennial Valley

66

 4/19

Gower

Gallatin Canyon

 2

101

Check in 2012

Bighorn

111

Dubois

Rock Creek

42

4/8 ,4/22

Gower-Sumner

Gallatin Canyon

2

43

Numerous 

Gilbert-Dubios

Smith River

 2

2 

46

 4/29

Jaquith & Health

East Rosebud

1 

47

4/8 

Donofrio

Bitterroot

2

89

 4/26

Donofrio

Bitterroot

0

50

Spring 

Anderson

Madison River

 2

51

 3-21, 3-24

Wrobleski-Seli

Flathead River

1

52

Ingebretson
& Crow

Flathead Lake

2 

 2

80

4/9

Sasse-Sumner-Shreading

Yellowstone River

2