Observation: Unknown
Primary Observer:
Stephen Rossiter
Event Date:
2026-07-05
Status:
Unreviewed
Survey
Site Name:
Golden Lake Park and Circle Pines Neighborhood
Province/State:
Minnesota
Event Date:
2026-07-05
Time of Day:
Night-Time
Start Time:
22:15
End Time:
22:20
Number of Observers:
3
Primary Observer:
Stephen Rossiter
Additional Observers:
target_species_genus:
target_species_species:
Location and Habitat
Location Accuracy (meters):
50-100
Habitat Type:
Developed - Sub/urban areas; parks/gardens
Habitat Type Notes:
Conifer and deciduous trees and patches both shrubby areas and sunny lawn.
Elevation (meters):
277
Area Searched (hectares):
0.05
Artificial Light Sources
Vehicles: Yes
Street Lights: No
Buildings: Yes
Street Lights: No
Buildings: Yes
Artificial Light Types
Sky Glow (diffuse illumination in the sky): Yes
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): No
Light Trespass (light cast on surfaces beyond its intended target): Yes
Glare (bright light causing visual discomfort): No
Artificial Light Notes:
No streetlight nearby
Observation
Observation Type:
With Flash Data
Number Observed:
2-10
genus:
unknown
Species:
unknown
Observation Notes:
Video on Youtube at https://youtu.be/XumkWHJSjgk.
Specimen Voucher Number:
Flash Behavior
First Flash Time:
22:18
Last Flash Time:
22:19
First Flash Temp (F):
76
Last Flash Temp (F):
76
Flashes in Pattern:
2
Flash Color:
Unknown
Flash Pattern Period:
5.724
Flash Duration:
0.115
Flash Interval:
1.53
Male Height Zone:
Moderate (3-8 ft), High (over 8 ft)
Flash Location:
Video on Youtube at https://youtu.be/XumkWHJSjgk. Flying by above my head in an area with mown lawn, a few shrubby areas, more conifer overstory and some deciduous trees.
Male Flash Behavior:
Video on Youtube at https://youtu.be/XumkWHJSjgk. Flash color white or yellow. As this individual flew by, flash duration was between 3 and 4 frames of video at 30 frames per second, so between 0.10 and 0.13 sec per flash, say 0.115, and stayed pretty constant. Flashes were seen in pairs (2 per train, with about 4 sec between pairs). Start times for flashes in the video are:
00:46.30
00:48.00 1.59 int
pause of 4.12
00:52.23
00:53.86 1.52 int
pause of 3.86
00:57.83
00:59.46 1.52 int
pause of 3.83
01:03.40
01:05.00 1.49 int
pause of 3.72
01:08.83
01:10.50 1.56 int
pause of 4.29
01:14.90
01:16.50 1.49 int
