2019 Broomfield Bald Eagle Watch Data Sheet

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1 2019 Broomfield Bald Eagle Watch Data Sheet Site Code Date Start Time End Time Observer Observation Pt. Sky Code Number of adult Bald Eagles detected 2 SL 1/7/2019 8:20:00AM 9:50:00AM HNG A PC Number of nestlings detected 0 Noise Start n/a End n/a Temp (F) Number of fledglings detected 0 Behaviors A P- Perched 1. (A) NI - Nest Incubating (L) NB - Nest Brooding (1) NC - Nest Const/Maint. (D) FS - Feeding Self (C ) FY - Feeding Young (M ) PR - Preening (B) BR - Branching FL - Fledging SL - Sleeping (E ) AI - Aggressive Interact. (F) Fly - to/from Nest/Perch (7) TE- Territory Flight (8) NV - Not Visible (9) C - Courtship (G) Cop - Copulate (H) Disturbance Indicators (DI) 1 Staring Intently 2 Raised hackles 3 Alert posture 4 Distress calls 2 (three distinctive calls of nesting birds in response to humans) 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) b. 5 Flushing c. wails (rare) 6* Standing over their eggs (For an extended period > 10 min. notify super; > 20 minutes Stop Work) 7* Standing on the side of nest (For an extended period > 10 min notify super; > 20 minutes Stop Work) 8* Absence from the nest for an extended period 9 Direct flight toward construction, particularly if vocalizing while flying 10 Vocalization during flight in the vicinity of construction 2. 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. peal high-pitched, prolonged, gull-like cry, repeated 3-5 times *. Applies to incubation /brooding periods - once chicks hatch standing in or on the side of the nest is normal. Absence from nest also common A. The alpha-numeric codes in parenthsis correspond to FRNBES behavior codes Please include additional notes and comments below: Two adult bald eagles observed in nest or within the nest tree for the majority of visit. Nest construction/maintainence behaviors were observed by both adult eagles. Building construction activities were consistent throughout the observation period and included framing buildings in Zone B and men on foot pounding and using machinery in Zone A.

2 Plumage Y - Young JU - Juvenile SU- Sub Adult AD- Adult Eagle ID Examples A1 - Adult 1 A2 - Adult 2 Y1 - First Eaglet Y2 - Second Eaglet Y3- Third Eaglet Sky Codes Wind Codes Speed (mph) CL Clear 0 0 PC Partly Cloudy OC Overcast DR Drizzle RA Rain SN Snow SL Sleet/hail Large branches in motion FH Fog/Haze Whole trees in motion Used as a back-up to anemometer Description 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 Photo (s)

3 Time (Continuous) min. obs. Behavior Disturbance 3 Notes /comments/loc 2. Wind A1 A2 Y1 Y2 Y3 Type DI Spd. Dir. 8:20 8:20 P1 P2 Constr. 0 Start at Obs. Point A. 2 adult eagles observed - 1 in nest, one adjacent 5.2 E 8:23 P1 P2 Constr. 0 8:24 P1 Fly Constr. 0 8:24 P1 P1 Constr. 0 8:26 8:26 NC NC Constr. 0 8:29 8:29 P1 P2 Constr. 0 8:32 P1 P2 Constr. 0 8:34 P1 NV Constr. 0 8:35 P1 NV Constr. 0 8:38 P1 NV Constr. 0 8:41 P1 NV Constr. 0 8:44 P2 NV Constr. 0 8:45 Fly P2 Constr. 0 8:45 P2 P2 Constr. 0 8:47 P2 P2 Constr. 0 8:50 P2 P2 Constr. 0 looking around here and there 5.1 E 8:53 P2 P2 Constr. 0 8:56 P2 P2 Constr. 0 8:59 Fly P2 Constr. 0 9:00 NC P2 Constr. 0 9:01 NC Fly Constr. 0 9:02 9:02 NC Fly Constr. 0 9:04 P1 NC Constr. 0 9:04 NC NC Constr. 0 9:05 P1 P1 Constr. 0 9:08 P1 P1 Constr. 0 9:09 NC P1 Constr. 0 9:11 P1 P1 Constr. 0 9:14 NC NC Constr. 0 Mark disturbance on BBC property on attached map (Figure 2) Disturbance Type includes: construction, highway/traffic, train, aircraft, pedestrians, horseback riders, other perched eagle flies both adults in nest moving nest materials one adult hopped up to perch just above nest looked away for a moment, eagle perched above nest no longer visible only 1 eagle visible : eagle in nest hopped to just above nest eagle above nest flew to N side of nest tree and joined A2 (now visible) both eagle briefly vocalize perched adjacent to each other on NW side of nest tree one adult left perch w stick, flew around and into nest one walking around in nest moving sticks perched eagle circled to south and back to nest tree (P2) circled to south again, and then onto ground below nest grabbed stick from ground both eagles in nest moving sticks both eagles in nest moving sticks both remaining in nest just looking around, mostly to S some nest construction both eagles in nest moving sticks both in nest moving sticks Perch type = 1. On nest; 2. In nest tree (outside of nest); 3. < 50 m. outside of nest tree; 4. > m from nest; m. from nest: 6. >1k from nest. mark locations on attached map

4 Time (Continuous) 3 min. obs. Behavior Disturbance 3 Notes /comments/loc 2. A1 A2 Y1 Y2 Y3 Type DI Spd. Dir. 9:17 P1 P1 Constr. 0 9:20 P1 P1 Constr E 9:23 P1 P1 Constr. 0 9:26 P1 P1 Constr. 0 9:29 P1 P1 Constr. 0 9:32 P1 P1 Constr. 0 9:35 P1 P1 Constr. 0 9:38 P1 P1 Constr. 0 9:41 P1 NC Train begin 0 9:43 NC NC Train end 0 9:44 NC fly Constr. 0 9:47 P1 P2 Constr. windy - Both eagles in nest 9:50 P1 P2 Constr. survey end 23.2 E some moving of nest materials one adult left nest to perch just above nest (P2) Both eagles in nest Wind

5 Path: P:\6900 Projects\6950 Broomfield Eagle Evaluation\Maps\6950 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 10, 2017 Observation Point Feet ± Figure 1 Observation Points and Common Perch Locations Prepared for: City of Broomfield Open Space and Trails File: 6950 Figure 1 Perches.mxd (WH) November 21, 2018 Portions of this document include intellectual property of ESRI and its licensors and are used herein under license. Copyright 2016 ESRI and its licensors. All rights reserved.

6 Path: P:\6900 Projects\6950 Broomfield Eagle Evaluation\Maps\6950 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 10, Feet ± Prepared for: City of Broomfield Open Space and Trails File: 6950 Figure 2.mxd (WH) November 13, 2018 Portions of this document include intellectual property of ESRI and its licensors and are used herein under license. Copyright 2016 ESRI and its licensors. All rights reserved.

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