Productivity at Peregrine Falcon territories in Montana, 2008

Revised 10/30/2008

No

Territory

Date(s)

Young

Number

Checked

Observer(s)

Location

Fledged

Remarks

1

Numerous

Sumner & Haynam

Clarks Fork River

2

Young already fledged on 7/20

2

26-Aug

Cerruti & Van Sickle

Centennial Valley

2

Two juveniles and one adult observed

3

Numerous

Donofrio & Lockman

Bitterroot

1

Territory may be checked again.

4

Numerous

Donofrio

Bitterroot

4

Young have already fledged on 7/24

5

Numerous

Romero

Bitterroot

2

Counted confirmed numerous times

6

Numerous

Sumner & Anderson

Boulder River

Unk

Active territory, unable to get fledge count

7

Numerous

Sumner, Fuller, Haynam

Bull River

Unk

Active territory, unable to get fledge count

8

3-Jul

Sumner & Sumner

Yellowstone River

2

Young have already fledged

9

Numerous

Sumner & Sumner

Blackfoot River

1

Minimum count, young fledged

12

10-Jul

Shreading & Sumner

Bighorn

2

Young already fledged

13

19-Jun

Shreading

Bighorn

3

Young about 42 days old

14

Numerous

Haynam

Flathead River

0

Adults present in spring-no young observed

15

Numerous

Sumner & Haynam

Clark Fork River

1

One young fledged on 6/28-mimimum count

16

23-Jul

Shreading

Big Horn

2

Young have already fledged

17

Numerous

Sumner & Haynam

Clark Fork River

0

No young observed

18

Numerous

Sumner & Haynam

Clark Fork River

2

Fledge Count by Haynam on 12 July

19

Numerous

Sumner & Haynam

Clark Fork River

0

No young observed

20

26-Jun

Sumner

Red Lodge

2

Minimum count

22

14-Jun

Sumner & Shreading

Blackfoot River

2

Young about 23 days old

23

Numerous

Haynam

Clark Fork River

0

Adults present, no young observed

24

Numerous

Donofrio

Bitterroot

4

 

26

9-Jul

Hall

Bighorn

Unk

Active territory, unable to check during fledging

28

Numerous

Sumner & Haynam

Flathead Reservation

3

Young fledged by 7/15

29

Numerous

Donofrio

Bitterroot

3

 

30

Numerous

Sumner

Clark Fork River

2

Young about 37 days old on 6/22

31

Numerous

Donofrio

Bitterroot

0

Adults present, no young observed

32

Numerous

Sumner & Haynam

Clark Fork River

0

Adults present, no young observed

33

Numerous

Eggeman, Sumner, Davis

Bitterroot

2

Adults present, unable to locate nesting cliff

35

Numerous

Sumner & Haynam

Clark Fork River

1

Young counted on ledge

36

Numerous

Anderson

Hebgen Lake

2

Minimum count. Young had fledged

37

22-Jun

Sumner

Yellowstone River

4

Young about 35 days old

38

June

Anderson

Centennial Valley

2

Two of four young taken by falconers

39

June

Anderson

Centennial Valley

0

One young found dead

40

21-Jun

Sumner & Hall

Yellowstone River

3

Young 38 days old, minimum count

41

Numerous

Donofrio

Bitterroot

2

 

42

5-Jul

Sumner & Sumner

Gallatin Canyon

2

Young 20 days old

44

7-Jul

Sumner & Sumner

Gallatin Canyon

0

No young observed

45

2-Jul

Sumner & Sumner

Stillwater River

3

Young 25 days old

46

23-Jun

Sumner & Sumner

East Rosebud

Unk

Active territory, unable to check during fledging

47

Numerous

Donofrio

Bitterroot

2

 

48

12-Apr

Wenzel & Sumner

Missouri River

Unk

Active territory, unable to get a fledge count

51

25-Jun

Haynam

Flathead River

3

Young 25-30 days old on 6/26

52

Numerous

Sumner, Haynam, Crow

Big Fork

0

Active territory, failed

58

Numerous

Donofrio

Bitterroot

2

 

61

20-Jun

Sumner & Sumner

Boulder River

3

Minimum count-young 20 days old

63

Numerous

Sumner & Haynam

Clark Fork River

2

FledgeCount by Haynam on 12 July

71

4-Jul

Anderson/Sumner

Hebgen Lake

3

Possibly a fourth young

72

Numerous

Sumner,Haynam, Crow

Flathead River

2

Pair used alternate territory at Burgess Lake

73

6-Jul

Sumner & Sumner

Gallatin Canyon

3

Young 30 days old

77

25-Jun

Davis & Fuller

Clark Fork River

2

Possibly a third young?

79

Numerous

Sumner & Wenzel

Jefferson River

0

Adults present, no young observed

80

21-Jun

Sumner

Yellowstone River

2

Young 20 days old, minimum count

81

7//12

Sumner & Sumner

East Front

2

Young already fledged-minimum count

83

Numerous

Sumner & Haynam

SF Flathead River

3