WRS Survey Summary

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Route	Boulder Reservoir to Rabbit Mountain, CO (1264)
Location	Colorado, USA
Survey date	2024-02-23
Survey ID	1877

Survey Conditions

Survey Date: 2024-02-23	Start Time: 07:20:00	End Time: 14:10:00
Temperature	4 (C)	13 (C)
Cloud Cover	5 (%)	0 (%)
Visibility	18 (km)	18 (km)
Precipitation	0: None	0: None
Wind Speed	2: 6-11 km/h (4-7 mph)	3: 12-19 km/h (8-12 mph)
Wind Direction	S	S
Water	Open	Open
Snow Depth	0 (in)	0 (in)
Observer 1	Ajit Antony
Observer 2	Liza Antony
Observer 3
Observer 4
Notes	We had about 50% more raptors than we usually get on this route. Highlights were a dark morph Ferruginous Hawk, an intermediate morph streak-breasted type Red-tailed Hawk, a Prairie Falcon, and 8 Golden Eagle (6 adult, 2 juvenile).

Survey Sightings

Species	Time	Count	Behavior	Morph	Age	Sex	Habitat
RT (Red-tailed Hawk)	07:30:00	1	Flying Perched	Light	Adult		•roadsides•developed•grassland

RT (Red-tailed Hawk)	07:35:00	1	Perched	Light			•roadsides•grassland

AK (American Kestrel)	07:40:00	1			Adult	Male	•roadsides•developed

AK (American Kestrel)	07:40:00	1	Flying Perched		Adult	Female	•roadsides•developed

RT (Red-tailed Hawk)	07:50:00	1	Flying Perched	Light	Adult		•grassland

NH (Northern Harrier)	07:55:00	1	Flying		Adult	Male	•grassland•wetland/pond/marsh/riparian

NH (Northern Harrier)	07:55:00	1	Flying		Adult	Female	•grassland•wetland/pond/marsh/riparian

RT (Red-tailed Hawk)	08:00:00	1	Flying	Light			•grassland

RT (Red-tailed Hawk)	08:05:00	1	Perched	Light			•grassland

BE (Bald Eagle)	08:15:00	1	Soaring		Immature

RT (Red-tailed Hawk)	08:15:00	1	Perched	Light			•roadsides•grassland

RT (Red-tailed Hawk)	08:15:00	1	Perched	Light			•roadsides•grassland

RT (Red-tailed Hawk)	08:20:00	1	Flying Perched	Intermediate			•roadsides•grassland•developed

BE (Bald Eagle)	08:55:00	1	Perched		Adult		•wetland/pond/marsh/riparian•developed

AK (American Kestrel)	09:00:00	1	Flying Perched		Adult	Male	•roadsides•grassland•animal agriculture

AK (American Kestrel)	09:05:00	1	Flying Perched		Adult	Female	•grassland•animal agriculture

RT (Red-tailed Hawk)	09:05:00	1	Soaring	Light	Adult		•grassland•roadsides

RT (Red-tailed Hawk)	09:15:00	1	Perched	Light			•grassland

RT (Red-tailed Hawk)	09:20:00	2	Flying	Light	Adult		•grassland•forested

GO (Great Horned Owl)	09:25:00	1	Perched				•grassland•forested

FH (Ferruginous Hawk)	09:35:00	1	Soaring	Light

FH (Ferruginous Hawk)	09:35:00	1	Soaring	Dark

RT (Red-tailed Hawk)	09:35:00	1	Soaring	Light	Adult		•grassland•developed

RT (Red-tailed Hawk)	09:45:00	1	Soaring	Light

RT (Red-tailed Hawk)	09:45:00	1	Perched	Light			•grassland

AK (American Kestrel)	09:55:00	1	Perched		Adult		•roadsides•grassland

RT (Red-tailed Hawk)	10:00:00	2	Perched	Light			•roadsides•developed

BE (Bald Eagle)	10:05:00	1	Flying Perched		Immature		•grassland•developed

AK (American Kestrel)	10:10:00	1	Perched		Adult	Male	•roadsides•grassland

RT (Red-tailed Hawk)	10:10:00	1	Flying				•grassland

RT (Red-tailed Hawk)	10:10:00	1	Soaring

BE (Bald Eagle)	10:15:00	1	Perched		Adult		•grassland

FH (Ferruginous Hawk)	10:15:00	1	Perched	Light	Adult		•grassland

BE (Bald Eagle)	10:25:00	1	Perched		Adult		•grassland•developed

RT (Red-tailed Hawk)	10:30:00	1		Light			•grassland•developed

BE (Bald Eagle)	10:35:00	2	Perched				•grassland•developed

RT (Red-tailed Hawk)	10:35:00	1	Perched	Light			•grassland•developed

RT (Red-tailed Hawk)	10:40:00	1	Flying	Light			•grassland•roadsides

RT (Red-tailed Hawk)	10:50:00	4	Soaring

RT (Red-tailed Hawk)	10:55:00	1	Perched	Light			•developed•wetland/pond/marsh/riparian

RT (Red-tailed Hawk)	10:55:00	1	Flying Perched	Light			•grassland

AK (American Kestrel)	11:00:00	2	Flying				•grassland

NH (Northern Harrier)	11:00:00	2	Flying		Adult	Male	•grassland

BE (Bald Eagle)	11:05:00	1	Flying		Adult		•grassland

RT (Red-tailed Hawk)	11:05:00	1	Perched Soaring	Light			•grassland

RT (Red-tailed Hawk)	11:05:00	1	Soaring

BE (Bald Eagle)	11:10:00	1	Soaring		Immature

GE (Golden Eagle)	11:10:00	1	Soaring		Adult

RT (Red-tailed Hawk)	11:15:00	2	Soaring

RT (Red-tailed Hawk)	11:20:00	1	Perched	Light			•grassland•roadsides

GE (Golden Eagle)	11:25:00	1	Soaring		Adult

BE (Bald Eagle)	11:30:00	2	Flying Perched		Adult		•wetland/pond/marsh/riparian

BE (Bald Eagle)	11:30:00	1	Perched		Immature		•wetland/pond/marsh/riparian

AK (American Kestrel)	11:35:00	1	Perched		Adult	Male	•roadsides•grassland•wetland/pond/marsh/riparian

RT (Red-tailed Hawk)	11:40:00	1	Perched	Light			•grassland•developed

RT (Red-tailed Hawk)	11:40:00	1	Soaring	Light	Adult

RT (Red-tailed Hawk)	11:45:00	1	Perched	Light			•roadsides•grassland

GE (Golden Eagle)	11:50:00	2	Soaring		Adult

RT (Red-tailed Hawk)	11:50:00	3	Soaring

GE (Golden Eagle)	12:00:00	1	Perched		Adult		•grassland

GE (Golden Eagle)	12:00:00	1	Soaring		Immature

FH (Ferruginous Hawk)	12:15:00	1	Perched	Light	Adult	Male	•roadsides•grassland

PR (Prairie Falcon)	12:20:00	1	Flying				•grassland

RT (Red-tailed Hawk)	12:25:00	1	Perched	Light	Adult		•grassland•developed•roadsides

RT (Red-tailed Hawk)	12:30:00	1	Soaring	Light	Adult

BE (Bald Eagle)	12:35:00	1	Perched		Adult		•grassland•roadsides

RT (Red-tailed Hawk)	12:35:00	5	Soaring		Adult

AK (American Kestrel)	12:45:00	2	Flying Perched		Adult	Male	•roadsides•grassland

NH (Northern Harrier)	12:55:00	1	Flying		Adult	Female	•grassland

BE (Bald Eagle)	13:00:00	2	Soaring		Adult

BE (Bald Eagle)	13:00:00	3	Soaring		Immature

FH (Ferruginous Hawk)	13:25:00	1	Perched	Light	Adult		•grassland

RT (Red-tailed Hawk)	13:25:00	2	Soaring	Light

RT (Red-tailed Hawk)	13:25:00	1	Soaring	Light

FH (Ferruginous Hawk)	13:30:00	1	Soaring	Light

BE (Bald Eagle)	13:35:00	1			Immature

GE (Golden Eagle)	13:40:00	1	Soaring		Adult

GE (Golden Eagle)	13:40:00	1	Soaring		Immature

RT (Red-tailed Hawk)	13:50:00	1	Flying Perched	Light	Adult		•grassland

BE (Bald Eagle)	14:00:00	1	Perched		Adult		•grassland

BE (Bald Eagle)	14:05:00	1	Perched		Adult		•grassland

Survey totals by species

Species	Total Count
RT (Red-tailed Hawk)	50
AK (American Kestrel)	11
NH (Northern Harrier)	5
BE (Bald Eagle)	21
GO (Great Horned Owl)	1
FH (Ferruginous Hawk)	6
GE (Golden Eagle)	8
PR (Prairie Falcon)	1
Total	103