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Union Reservoir

Located in the Colorado, USA area, Union Reservoir is a popular birding destination. Recently, birders have spotted Canada Goose, Redhead, Ruddy Duck in the area.

299
All-Time Species
60
Sightings (14 days)
Colorado
Region
United States
Country

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Live eBird Sightings

Trailing 14 Days
Species
Date Spotted
Count
Canada GooseBranta canadensis
Jul 24, 2026
5
RedheadAythya americana
Jul 24, 2026
2
Ruddy DuckOxyura jamaicensis
Jul 24, 2026
1
SoraPorzana carolina
Jul 24, 2026
1
American CootFulica americana
Jul 24, 2026
1
KilldeerCharadrius vociferus
Jul 24, 2026
8
Spotted SandpiperActitis macularius
Jul 24, 2026
1
Pied-billed GrebePodilymbus podiceps
Jul 24, 2026
2
Western GrebeAechmophorus occidentalis
Jul 24, 2026
320
Clark's GrebeAechmophorus clarkii
Jul 24, 2026
2
Double-crested CormorantNannopterum auritum
Jul 24, 2026
2
Great Blue HeronArdea herodias
Jul 24, 2026
2
American White PelicanPelecanus erythrorhynchos
Jul 24, 2026
7
OspreyPandion haliaetus
Jul 24, 2026
2
Northern FlickerColaptes auratus
Jul 24, 2026
1
American KestrelFalco sparverius
Jul 24, 2026
1
Western KingbirdTyrannus verticalis
Jul 24, 2026
6
Eastern KingbirdTyrannus tyrannus
Jul 24, 2026
2
Barn SwallowHirundo rustica
Jul 24, 2026
3
House SparrowPasser domesticus
Jul 24, 2026
3
House FinchHaemorhous mexicanus
Jul 24, 2026
2
American GoldfinchSpinus tristis
Jul 24, 2026
2
Yellow-headed BlackbirdXanthocephalus xanthocephalus
Jul 24, 2026
1
Red-winged BlackbirdAgelaius phoeniceus
Jul 24, 2026
30
Common GrackleQuiscalus quiscula
Jul 24, 2026
4
Common YellowthroatGeothlypis trichas
Jul 24, 2026
1
Eurasian Collared-DoveStreptopelia decaocto
Jul 24, 2026
1
Mourning DoveZenaida macroura
Jul 24, 2026
2
Least SandpiperCalidris minutilla
Jul 24, 2026
1
Say's PhoebeSayornis saya
Jul 24, 2026
1
Cliff SwallowPetrochelidon pyrrhonota
Jul 24, 2026
15
MallardAnas platyrhynchos
Jul 22, 2026
10
Baird's SandpiperCalidris bairdii
Jul 22, 2026
7
Ring-billed GullLarus delawarensis
Jul 22, 2026
20
Eared GrebePodiceps nigricollis
Jul 22, 2026
3
Red-tailed HawkButeo jamaicensis
Jul 22, 2026
1
European StarlingSturnus vulgaris
Jul 22, 2026
1
Rock PigeonColumba livia
Jul 19, 2026
9
Forster's TernSterna forsteri
Jul 19, 2026
2
American RobinTurdus migratorius
Jul 19, 2026
5
Lark SparrowChondestes grammacus
Jul 19, 2026
1
Vesper SparrowPooecetes gramineus
Jul 19, 2026
1
Song SparrowMelospiza melodia
Jul 19, 2026
2
Western MeadowlarkSturnella neglecta
Jul 19, 2026
2
Long-billed DowitcherLimnodromus scolopaceus
Jul 16, 2026
1
Turkey VultureCathartes aura
Jul 16, 2026
1
Great-tailed GrackleQuiscalus mexicanus
Jul 16, 2026
3
Cooper's HawkAstur cooperii
Jul 15, 2026
1
Blue JayCyanocitta cristata
Jul 15, 2026
3
Bank SwallowRiparia riparia
Jul 15, 2026
4
White-breasted NuthatchSitta carolinensis
Jul 15, 2026
3
Brown-headed CowbirdMolothrus ater
Jul 15, 2026
5
Blue GrosbeakPasserina caerulea
Jul 15, 2026
1
Cinnamon TealSpatula cyanoptera
Jul 14, 2026
1
GadwallMareca strepera
Jul 14, 2026
2
Downy WoodpeckerDryobates pubescens
Jul 14, 2026
1
Northern ShovelerSpatula clypeata
Jul 12, 2026
6
Jul 12, 2026
5
Lesser YellowlegsTringa flavipes
Jul 12, 2026
2
Brewer's BlackbirdEuphagus cyanocephalus
Jul 12, 2026
4

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