Site Code End Time Observer Sky Code 2
SL 5:30pm GAH CL
Noise Start End 48.4 Temp (F) 45 40
1 Staring Intently 2 Raised hackles 3 Alert posture
4 Distress calls2 (three distinctive calls of nesting birds in response to humans) a.
b.
c. “wails” (rare) 5 Flushing
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
*. 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 parenthesis correspond to FRNBES behavior codes Please include additional notes and comments below:
Construction consisted of framing, hammering, and drilling in zones A, B, and C. Both eagles were observed. Copulation was also observed.
In addition, a juvenile bald eagle flew to the top of the nest tree, next to A1. A1 made raised hackles and the juvenile eagle flew away and did not return.
No signs of disturbance from construction were observed.
Observation Pt.
A
Disturbance Indicators (DI) 53
Number of adult Bald Eagles detected Number of nestlings detected Number of fledglings detected
PR - Preening (B)
FL - Fledging
TE- Territory Flight (8) NV - Not Visible (9)
Cop - Copulate (H) C - Courtship (G) BR - Branching
2019 Broomfield Bald Eagle Watch Data Sheet
2/5/2019 3:30pm
Behaviors A P- Perched 1. (A)
Date Start Time
SL - Sleeping (E ) NI - Nest Incubating (L) NB - Nest Brooding (1)
AI - Aggressive Interact. (F) Fly - to/from Nest/Perch (7) NC - Nest Const/Maint. (D) FS - Feeding Self (C ) FY - Feeding Young (M )
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.
“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)
"peal” high-pitched, prolonged, gull-like cry, repeated 3-5 times
Sky Codes Speed (mph)
CL Clear 0
PC Partly Cloudy 1-3
OC Overcast 4-7
DR Drizzle 8-12
RA Rain 13-18
SN Snow 19-24
SL Sleet/hail 25-31
FH Fog/Haze 31+
Used as a back-up to anemometer
Photo (s)
6+ Whole trees in motion
Y3- Third Eaglet Plumage
Eagle ID Examples Y - Young
JU - Juvenile SU- Sub Adult AD- Adult
A1 - Adult 1
Y1 - First Eaglet A2 - Adult 2
Y2 - Second Eaglet
4 5
Small branches sway Large branches in motion 6
Smoke rises vertically Wind direction visible in smoke Wind felt on face, leaves rustle
Leaves and smaller twigs in constant motion 0
1 2 3
Smaller trees sway
Description Wind Codes
A1 A2 Y1 Y2 Y3 Type DI Spd. Dir.
1530 1530 P2 P2 Constr. 4.74 W
1533 P2 P2 Constr.
1536 Cop Cop Constr.
1537 1537 P2 P2 Constr.
1539 P2 P2 Constr.
1542 P2 P2 Constr.
1545 P2 P2 Constr.
1548 P2 P2 Constr.
1551 P2 P2 Constr.
1554 1554 P2 Fly/P1 Constr.
1557 1557 P2 Fly Constr.
1500 P2 NV Constr. 4.82 W
1603 P2 NV Constr.
1606 P2 NV Constr.
1609 P2 NV Constr.
1612 P2 NV Constr.
1615 P2 NV Constr.
1618 P2 NV Constr.
1621 P2 NV Constr.
1624 P2 NV Constr.
1627 P2 NV Constr.
1630 P2 NV Constr. 3.75 W
1633 P2 NV Constr.
1636 P2 NV Constr.
1637 1639 P2 NV
Juvenile bald
eagle 2
1639 1642 P2 NV Constr.
1645 P2 NV Constr.
1648 P2 NV Constr.
1651 P2 NV Constr.
Disturbance Type includes: construction, highway/traffic, train, aircraft, pedestrians, horseback riders, other
Both in nest tree 3 min.
obs.
Copulation
A2 moved to a different branch on the nest tree Time
(Continuous) Behavior Disturbance3 Notes /comments/Loc 2. Wind
Both in nest tree
No change No change No change No change No change No change No change
A2 flew west and then to the nest Both in nest tree
No change
No change No change
No change No change A2 flew east out of sight A1 in nest tree. A2 not visible.
No change No change No change
1. Perch type = 1. On nest; 2. In nest tree (outside of nest); 3. < 50 m. outside of nest tree; 4. >51-200 m from nest; 5. 201-1000 m. from nest: 6. >1k from nest. mark locations on No change
Juvenile B. eagle flew to top of nest tree - A1 raised hackles and juvenile eagle flew away.
No change
3. Mark disturbance on BBC property on attached map (Figure 2)
No change No change A1 in nest tree
A1 A2 Y1 Y2 Y3 Type DI Spd. Dir.
1651 P2 NV Constr.
1654 P2 NV Constr.
1657 P2 NV Constr.
1700 P2 NV
1703 P2 NV
1706 P2 NV
1709 P2 NV
1712 P2 NV
1715 P2 NV
1718 P2 NV
1719 P2 P2
1721 P2 Fly
1724 P2 NV
1727 P2 NV
1730 P2 NV 2.39 W
Time Wind
(Continuous) 3 min.
obs. Behavior Disturbance3 Notes /comments/Loc 2.
A2 flew out of sight No change No change No change
No change/construction stopped No change
No change No change No change No change No change
A2 flew in and landed next to A1 at the top of the nest tree
A1 in nest tree No change No change
b[
k j k j
k j k
j
Stearns Perch H Stearns Perch B
Stearns Perch A
Stearns Perch C
Stearns Perch F Stearns Perch D
Stearns Perch E Stearns Nest
Northwest Parkway
Carbon Road
Stearns Perch G (Western Rock Creek)
C
D A
B
Prepared for: City of Broomfield Open Space and Trails
File: 6950 Figure 1 Perches.mxd (WH) January 4, 2019
±
Figure 1
Observation Points and Common Perch Locations Broomfield Eagle Evaluation
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.
0 400 800
Feet
Location
Path: P:\6900 Projects\6950 Broomfield Eagle Evaluation\Maps\6950 Figure 1 Perches.mxd
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
k
j Observation Point 50 Meter Buffer 200 Meter Buffer 1000 Meter Buffer
Image Source: DigitalGlobe© October 10, 2017
Observed from observation point A for the entire site visit.
[ b
Northwest Parkway
Via Varra
Project Access Point
BNSF R ailroad
Zone A
Zone B Zone C
Prepared for: City of Broomfield Open Space and Trails File: 6950 Figure 2.mxd (WH) November 13, 2018
±
Figure 2 Title Broomfield Eagle Evaluation
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.
0 200 400
Feet
Path: P:\6900 Projects\6950 Broomfield Eagle Evaluation\Maps\6950 Figure 2.mxd
[
b
Nest LocationDisturbance Zone Boundary
Image Source: DigitalGlobe© October 10, 2017
Construction consisted of framing,
hammering, and drilling in zones A, B, and C.