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Activity at 61 Peregrine Falcon eyries in Montana, 2006
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Revised 5/02/2006
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Eyrie
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Date(s)
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Active/
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No.Young
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Number
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Checked
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Observer(s)
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Location
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Inactive
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Fledged
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Remarks
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1
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25-Mar
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Sumner
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Clark Fork River
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Active?
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Only one adult observed
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2
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Centennial Valley
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3
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11-Apr
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Lockman
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Bitterroot
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Active
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Both adults present
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4
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8-Apr
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Donofrio
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Bitterroot
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Active
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Both adults present
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5
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1-May
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Donofrio
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Bitterroot
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Active?
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One adult observed
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6
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5-Apr
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Sumner & Crow
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Boulder River
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Active
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Both adults present
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7
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21-Apr
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Sumner & Crow
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Troy
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Active
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Both adults present
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8
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4-Apr
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Sumner & Crow
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Livingston
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Active
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Both adults present
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9
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30-Mar
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Sumner, Davis & Fuller
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Blackfoot River
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Active?
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One adult observed
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10
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Madison River
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11
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Missouri River
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12
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Bighorn
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13
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14-Apr
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Rogers
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Bighorn
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Active
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Both adults present
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15
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26-Mar
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Sumner
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Clark Fork River
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Active?
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One adult observed
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16
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Bighorn
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17
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1-Apr
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Sumner
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Clark Fork River
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Active?
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Adult female observed
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18
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19-Apr
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Sumner & Crow
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Clark Fork River
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Active
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Both adults present
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19
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17-Mar
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Sumner/Davis
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Clark Fork River
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Active
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Only the adult female observed
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20
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15-Apr
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Rogers
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Red Lodge
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Active
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Both adults present
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21
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Madison River
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22
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30-Mar
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Sumner, Davis & Fuller
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Blackfoot River
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Active
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Both adults present during 2nd check
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23
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18-Apr
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Sumner & Crow
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Clarks Fork/Flathead River
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Active?
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Only the adult female observed
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24
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12-Apr
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Donofrio
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Bitterroot
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Active
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Both adults present
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25
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Yellowstone Park
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26
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Bighorn
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27
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Centennial Valley
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28
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23-Mar
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Sumner& Crow
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Flathead Reservation
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Active?
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One adult observed
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29
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20-Apr
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Donofrio
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Bitterroot
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Active
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Both adults observed on 2nd check
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30
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9-Mar
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Sumner
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Clark Fork River
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Active
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Both adults present-displaying courtship
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31
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11-Apr
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Donofrio
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Bitterroot
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Active
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Both adults present
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32
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27-Mar
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Sumner
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Clark Fork River
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Active?
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One adult observed
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33
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2-May
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Donofrio
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Bitterroot
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Active?
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One adult observed-new nesting cliff
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34
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26-Mar
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Sumner
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Clark Fork River
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Active
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Both adults present-displaying courtship
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35
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28-Apr
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Sumner
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Clark Fork River
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Active?
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Only the adult male (?) observed
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36
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Hebgen Lake
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37
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Yellowstone River
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38
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Centennial Valley
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39
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Centennial Valley
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40
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5-Apr
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Hall & Rogers
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Billings
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Active
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Both adults present
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41
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9-Apr
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Donofrio
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Bitterroot
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Active
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42
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8-Apr
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Sumner & Crow
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Gallatin Canyon
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Active
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Both adults present
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43
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Smith River
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44
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9-Apr
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Sumner & Crow
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Gallatin Canyon
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Active
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Both adults present
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45
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Stillwater River
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46
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East Rosebud
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47
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14-Apr
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Donofrio
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Bitterroot
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Active
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Both adults present
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48
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14-Apr
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Sumner & Crow
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