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RouteRocky Mountain Arsenal NWR to Barr Lake and west of DIA, CO (1267)
Location Colorado, USA
Survey date 2023-02-11
Survey ID1596

Survey Conditions

Survey Date: 2023-02-11Start Time: 09:00:00End Time: 17:30:00
Temperature5 (C)2 (C)
Cloud Cover40 (%)60 (%)
Visibility35 (km)5 (km)
Precipitation0: None1: Haze or Fog
Wind Speed3: 12-19 km/h (8-12 mph)2: 6-11 km/h (4-7 mph)
Wind DirectionSE
Snow Depth0 (in)1 (in)
Observer 1Ajit Antony
Observer 2Liza Antony
Observer 3
Observer 4
Notes While we were near the end of the Wildlife Loop at Rocky Mountain Arsenal NWR I noticed in my rearview mirror that our trunk was open. Check the scope, I said. It wasn't there – we had left it behind at the last stop. We reversed a few hundred yards very carefully, and fortunately found it on the side of the road!
We met our daughter and grandchildren at Lake Mary for a few minutes – they were there for a walk. Our 7 year old grandson Oliver who loves hawks found and identified a distant Kestrel on a wire and 2 BE in the sky that I needed binoculars to see. His 4-year-old sister not to be outdone found us what turned out to be an adult Golden Eagle! I told them that if our route had not lasted all day we would take them with us, for their sharp eyes.

Survey Sightings

RT (Red-tailed Hawk)09:10:001Perched Light•grassland
AK (American Kestrel)09:20:002Perched AdultMale•grassland•roadsides
AK (American Kestrel)09:20:001Flying Perched AdultFemale•grassland•roadsides
RT (Red-tailed Hawk)09:25:002Flying Perched Light•grassland
PR (Prairie Falcon)09:30:001Perched •grassland
BE (Bald Eagle)09:40:002Perched Adult•wetland/pond/marsh/riparian•grassland
BE (Bald Eagle)09:45:001Flying Immature•wetland/pond/marsh/riparian•grassland
BE (Bald Eagle)09:50:001Perched Adult•grassland
RT (Red-tailed Hawk)09:50:001Perched Light•grassland
BE (Bald Eagle)10:00:001Perched Adult•grassland
RL (Rough-legged Hawk)10:05:001Perched LightImmature•grassland
NH (Northern Harrier)10:10:001•grassland
RT (Red-tailed Hawk)10:20:001Flying Perched LightAdult•grassland
FH (Ferruginous Hawk)10:25:001Perched LightImmature•grassland•developed
FH (Ferruginous Hawk)10:40:001Flying Perched LightAdult•grassland•roadsides
NH (Northern Harrier)10:45:001Perched AdultFemale
FH (Ferruginous Hawk)10:50:001Flying Light•grassland
BE (Bald Eagle)10:55:001Perched Adult•grassland
FH (Ferruginous Hawk)11:00:001Flying LightAdult•grassland
FH (Ferruginous Hawk)11:05:001Flying LightAdult•grassland•developed
FH (Ferruginous Hawk)11:05:002Flying Light•developed•grassland
BE (Bald Eagle)11:10:002Flying Perched Immature•grassland
FH (Ferruginous Hawk)11:15:001Perched LightAdult•grassland
FH (Ferruginous Hawk)11:20:002Perched LightImmature•grassland•developed
RT (Red-tailed Hawk)11:30:002Soaring LightAdult
BE (Bald Eagle)11:45:001Flying Perched Immature•grassland
FH (Ferruginous Hawk)11:45:001Flying Perched LightImmature•developed
FH (Ferruginous Hawk)11:55:001Perched LightAdult•grassland
NH (Northern Harrier)11:55:001Flying Perched Immature•grassland
FH (Ferruginous Hawk)12:00:001Flying LightAdult•grassland•roadsides
FH (Ferruginous Hawk)12:15:001Perched LightAdult•grassland
FH (Ferruginous Hawk)12:15:001Perched LightImmature•roadsides
AK (American Kestrel)12:20:001Perched AdultMale•roadsides
BE (Bald Eagle)12:25:002Soaring Adult
BE (Bald Eagle)12:30:002Soaring Immature
GE (Golden Eagle)12:35:001Soaring Adult
RT (Red-tailed Hawk)12:45:002Soaring Adult
AK (American Kestrel)12:50:001Perched AdultFemale•roadsides
RT (Red-tailed Hawk)13:30:001Flying Light•grassland
BE (Bald Eagle)13:35:001Immature•grassland
BE (Bald Eagle)13:35:001Perched Adult•grassland
NH (Northern Harrier)13:40:001Flying •roadsides
RT (Red-tailed Hawk)13:45:002Perched Light•developed•grassland
NH (Northern Harrier)13:50:002Flying AdultFemale•grassland
RT (Red-tailed Hawk)13:50:001Flying Perched LightImmature•roadsides•grassland
AK (American Kestrel)13:55:001Flying Perched AdultMale•roadsides•grassland
FH (Ferruginous Hawk)14:00:001Perched LightImmature•grassland
BE (Bald Eagle)14:15:001Flying Adult•roadsides•grassland
GE (Golden Eagle)14:15:001Perched Adult•roadsides•grassland
FH (Ferruginous Hawk)14:25:001Perched LightImmature•grassland•roadsides
AK (American Kestrel)14:35:001Perched AdultMale•roadsides•grassland
RT (Red-tailed Hawk)14:40:002Perched Adult•grassland
NH (Northern Harrier)14:50:001Flying AdultMale•stubble agriculture
NH (Northern Harrier)14:50:001Flying Immature
AK (American Kestrel)15:00:001Perched AdultMale•grassland•roadsides
NH (Northern Harrier)15:00:001Flying Immature•grassland
PR (Prairie Falcon)15:05:001Flying •grassland
NH (Northern Harrier)15:15:001Flying •grassland
FH (Ferruginous Hawk)15:20:001Perched LightAdult•stubble agriculture•roadsides
FH (Ferruginous Hawk)15:25:001Perched LightAdult•roadsides•grassland
FH (Ferruginous Hawk)15:35:001Perched Light•roadsides•grassland
RL (Rough-legged Hawk)15:35:001Perched Light•roadsides•grassland
NH (Northern Harrier)15:50:001Flying •grassland
NH (Northern Harrier)15:50:001Flying Immature•grassland
RT (Red-tailed Hawk)15:50:001Flying Perched LightAdult•roadsides•grassland
NH (Northern Harrier)15:55:001Flying Adult•grassland
NH (Northern Harrier)15:55:001Flying Immature•grassland
NH (Northern Harrier)15:55:001Flying Immature•grassland
FH (Ferruginous Hawk)16:00:001Perched LightImmature•grassland
NH (Northern Harrier)16:05:001Flying AdultMale•grassland•developed
FH (Ferruginous Hawk)16:10:001Flying Perched Light•grassland•stubble agriculture
NH (Northern Harrier)16:10:001Flying Immature•grassland
BE (Bald Eagle)16:15:003Perched Adult•wetland/pond/marsh/riparian
NH (Northern Harrier)16:20:001Flying Immature•grassland
NH (Northern Harrier)16:20:001Flying •grassland
RT (Red-tailed Hawk)16:25:002Flying Perched LightAdult•wetland/pond/marsh/riparian•grassland
RT (Red-tailed Hawk)16:25:001Flying •grassland
BE (Bald Eagle)16:30:001Adult•developed•wetland/pond/marsh/riparian
BE (Bald Eagle)16:35:007Perched •wetland/pond/marsh/riparian
NH (Northern Harrier)16:35:001Flying Perched AdultMale•wetland/pond/marsh/riparian
NH (Northern Harrier)16:55:001Flying Perched •grassland•roadsides
NH (Northern Harrier)17:00:001Flying AdultMale•developed•grassland
NH (Northern Harrier)17:00:001Flying •developed•grassland
RT (Red-tailed Hawk)17:00:001Flying Perched Light•grassland•developed
RT (Red-tailed Hawk)17:05:001Perched Light•roadsides•grassland
BE (Bald Eagle)17:15:001Perched Immature•roadsides
FH (Ferruginous Hawk)17:25:001Flying •grassland
BE (Bald Eagle)17:30:001Perched Adult•roadsides•grassland

Survey totals by species

SpeciesTotal Count
RT (Red-tailed Hawk)21
AK (American Kestrel)8
PR (Prairie Falcon)2
BE (Bald Eagle)29
RL (Rough-legged Hawk)2
NH (Northern Harrier)23
FH (Ferruginous Hawk)23
GE (Golden Eagle)2