2019 Broomfield Bald Eagle Watch Data Sheet
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1 219 Broomfield Bald Eagle Watch Data Sheet Site Code Date Start Time End Time Observer Number of adult Bald Eagles detected 1 SL 1/2/219 3:35pm 5:5pm TR Number of nestlings detected Number of fledglings detected Behaviors P- Perched 1. NI - Nest Incubating NB - Nest Brooding NC - Nest Const/Maint. FS - Feeding Self Wind Code 1 Sky Code CL Temp (F) 38 Noise Start n/a Noise End Disturbance Indicators 1 Intent staring 2 Raised hackles 3 4 Alert posture Distress calls* (three distinctive calls of nesting birds in response to humans) 32 n/a FY - Feeding Young PR - Preening a. chatter call à 3-4 intro notes w/ short gasps of silence (<1s) followed by rapid sequence of descending notes, usually 6-9 notes (kwit kwit kwit kwit kee-kee-kee-kee-kee) FL - Fledging SL - Sleeping AI - Aggressive Interact. Fly - to/from Nest/Perch TE- Territory Flight NV - Not Visible C - Courtship/Copulate 5 Flushing b. "peal high-pitched, prolonged, gull-like cry, repeated 3-5 times c. wails (rare) 6* Standing over their eggs (For an extended period > 1 min. notify super; > 2 minutes Stop Work) 7* Standing on the side of nest (For an extended period > 1 min notify super; > 2 minutes Stop Work) 8 Absence from the nest for an extended period *Any distress call must be investigated to determine cause and any construction or human activity that may be responsible for the distress call, must be halted or modified immediately. ID Time 3 min. obs. Behavior Disturbance Notes /comments/loc 2. Wind Type DI Spd. Dir Start at Obs. Point A. observed. 1.1 W A Fly 1625 Walking to Obs. Point B. observed while walking. At Obs. Point B. observed. Returning to car to move to Obs. Point C Arrived at Obs. Point C. observed. Moving to Obs. Point D. Arriving at Obs. Point D. A1 seen flying west to nest Driving back to Obs. Point A. A P3 A1 located in Perch A. 2.4 W A P3 A P Same, A1 in Perch A. A1 in Perch A Lost sight of A1 while viewing construction area. 2. Perch type = 1. On nest; 2. In nest tree (outside of nest); 3. < 5 m. outside of nest tree; 4. >5m from nest; * Applies to incubation and brooding periods - once chicks hatch standing in or on the side of the nest is normal
2 ID Time 3 min. obs. Behavior Disturbance Notes /comments/loc 2. Wind Type ID Spd. Dir observed. Construction ended for day Train Train passing, no eagles 1659 Train has passed , end observation. 2 W
3 219 Broomfield Bald Eagle Watch Data Sheet Sky Codes Wind Codes Speed (mph) Description CL Clear PC Partly Cloudy OC Overcast DR Drizzle RA Rain SN Snow SL Sleet/hail FH Fog/Haze Smoke rises vertically Wind direction visible in smoke Wind felt on face, leaves rustle Leaves and smaller twigs in constant motion Small branches sway Smaller trees sway Large branches in motion Whole trees in motion Plumage Y - Young JU - Juvenile SU- Sub Adult AD- Adult Please include additional notes and comments below: were present at the nest site, or other common perches, for the majority of the visit. An adult was observed flying west towards the nest from 14th Street at 4:24pm. An adult was observed in Perch A at 4:36pm. The adult left the perch and was not seen at 4:45pm. The flight from Perch A was not observed and the eagle was not relocated during the remainder of the observation period. Construction was fairly light and consisted of hand crews framing buildings in Zone B. Work appeared to cease at approximately 4:48pm. Eagle ID Examples A1 - Adult 1 A2 - Adult 2 Y1 - First Eaglet Y2 - Second Eaglet Y3- Third Eaglet Photo (s) Adult eagle observed in Perch A.
4 Path: P:\69 Projects\695 Broomfield Eagle Evaluation\Maps\695 Figure 1 Perches.mxd Northwest Parkway Stearns Perch B Stearns Perch H Stearns Nest [b Stearns Perch A A B Stearns Perch E Stearns Perch D Carbon Road C Stearns Perch G (Western Rock Creek) Stearns Perch C D Stearns Perch F Location Broomfield Eagle Evaluation Sections 21,22, 27, and 28, T1S, R69W; 6th PM UTM NAD 83: Zone 13N; xxxxxxme, xxxxxxxmn Longitude xxx.xxxxxx W, Latitude xx.xxxxxx N USGS Lafayette, CO Quadrangle City and County of Broomfield and Boulder County, Colorado Image Source: DigitalGlobe October 1, 217 Observation Point 4 8 Feet ± Figure 1 Observation Points and Common Perch Locations Prepared for: City of Broomfield Open Space and Trails File: 695 Figure 1 Perches.mxd (WH) November 21, 218 Portions of this document include intellectual property of ESRI and its licensors and are used herein under license. Copyright 216 ESRI and its licensors. All rights reserved.
5 Path: P:\69 Projects\695 Broomfield Eagle Evaluation\Maps\695 Figure 2.mxd BNSF Railroad Northwest Parkway Zone C Zone A Via Varra [b Zone B Project Access Point Broomfield Eagle Evaluation [b Nest Location Disturbance Zone Boundary Figure 2 Title Image Source: DigitalGlobe October 1, Feet ± Prepared for: City of Broomfield Open Space and Trails File: 695 Figure 2.mxd (WH) November 13, 218 Portions of this document include intellectual property of ESRI and its licensors and are used herein under license. Copyright 216 ESRI and its licensors. All rights reserved.
2019 Broomfield Bald Eagle Watch Data Sheet
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