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Union Reservoir

Located in the Colorado, USA area, Union Reservoir is a popular birding destination. Recently, birders have spotted Northern Shoveler, American Wigeon, Mallard in the area.

300
All-Time Species
76
Sightings (14 days)
Colorado
Region
United States
Country

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Live eBird Sightings

Trailing 14 Days
Species
Date Spotted
Count
Northern ShovelerSpatula clypeata
Sep 22, 2026
9
American WigeonMareca americana
Sep 22, 2026
7
MallardAnas platyrhynchos
Sep 22, 2026
9
Ruddy DuckOxyura jamaicensis
Sep 22, 2026
10
Rock PigeonColumba livia
Sep 22, 2026
50
Eurasian Collared-DoveStreptopelia decaocto
Sep 22, 2026
3
Mourning DoveZenaida macroura
Sep 22, 2026
25
American CootFulica americana
Sep 22, 2026
15
KilldeerCharadrius vociferus
Sep 22, 2026
100
Red-necked PhalaropePhalaropus lobatus
Sep 22, 2026
20
SanderlingCalidris alba
Sep 22, 2026
3
Baird's SandpiperCalidris bairdii
Sep 22, 2026
1
Ring-billed GullLarus delawarensis
Sep 22, 2026
150
Pied-billed GrebePodilymbus podiceps
Sep 22, 2026
1
Western GrebeAechmophorus occidentalis
Sep 22, 2026
880
Clark's GrebeAechmophorus clarkii
Sep 22, 2026
2
Snowy EgretEgretta thula
Sep 22, 2026
1
Great EgretArdea alba
Sep 22, 2026
3
Great Blue HeronArdea herodias
Sep 22, 2026
2
American White PelicanPelecanus erythrorhynchos
Sep 22, 2026
1
Northern HarrierCircus hudsonius
Sep 22, 2026
1
Bald EagleHaliaeetus leucocephalus
Sep 22, 2026
1
Red-tailed HawkButeo jamaicensis
Sep 22, 2026
1
American KestrelFalco sparverius
Sep 22, 2026
1
Say's PhoebeSayornis saya
Sep 22, 2026
2
Barn SwallowHirundo rustica
Sep 22, 2026
30
European StarlingSturnus vulgaris
Sep 22, 2026
300
House FinchHaemorhous mexicanus
Sep 22, 2026
2
Yellow-headed BlackbirdXanthocephalus xanthocephalus
Sep 22, 2026
30
Western MeadowlarkSturnella neglecta
Sep 22, 2026
1
American AvocetRecurvirostra americana
Sep 21, 2026
2
Marbled GodwitLimosa fedoa
Sep 19, 2026
1
Wilson's PhalaropePhalaropus tricolor
Sep 19, 2026
21
Downy WoodpeckerDryobates pubescens
Sep 19, 2026
1
Peregrine FalconFalco peregrinus
Sep 19, 2026
1
Blue JayCyanocitta cristata
Sep 19, 2026
1
Red-winged BlackbirdAgelaius phoeniceus
Sep 19, 2026
15
Brewer's BlackbirdEuphagus cyanocephalus
Sep 19, 2026
173
Yellow-rumped WarblerSetophaga coronata
Sep 19, 2026
4
Wilson's WarblerCardellina pusilla
Sep 19, 2026
3
Canada GooseBranta canadensis
Sep 18, 2026
35
Horned LarkEremophila alpestris
Sep 18, 2026
2
Chipping SparrowSpizella passerina
Sep 18, 2026
2
Northern FlickerColaptes auratus
Sep 18, 2026
1
White-breasted NuthatchSitta carolinensis
Sep 18, 2026
1
American RobinTurdus migratorius
Sep 18, 2026
1
Vesper SparrowPooecetes gramineus
Sep 18, 2026
1
Orange-crowned WarblerLeiothlypis celata
Sep 18, 2026
3
Stilt SandpiperCalidris himantopus
Sep 17, 2026
2
Least SandpiperCalidris minutilla
Sep 17, 2026
X
Eared GrebePodiceps nigricollis
Sep 14, 2026
1
Double-crested CormorantNannopterum auritum
Sep 14, 2026
2
OspreyPandion haliaetus
Sep 14, 2026
1
Wilson's SnipeGallinago delicata
Sep 14, 2026
1
Blue GrosbeakPasserina caerulea
Sep 14, 2026
3
Blue-winged TealSpatula discors
Sep 14, 2026
4
Sabine's GullXema sabini
Sep 14, 2026
1
Turkey VultureCathartes aura
Sep 14, 2026
14
Cliff SwallowPetrochelidon pyrrhonota
Sep 14, 2026
1
House SparrowPasser domesticus
Sep 14, 2026
3
Savannah SparrowPasserculus sandwichensis
Sep 14, 2026
1
Song SparrowMelospiza melodia
Sep 14, 2026
1
Lincoln's SparrowMelospiza lincolnii
Sep 14, 2026
1
Common GrackleQuiscalus quiscula
Sep 14, 2026
20
WilletTringa semipalmata
Sep 13, 2026
2
American CrowCorvus brachyrhynchos
Sep 12, 2026
1
Forster's TernSterna forsteri
Sep 11, 2026
2
Common YellowthroatGeothlypis trichas
Sep 11, 2026
1
Spotted SandpiperActitis macularius
Sep 11, 2026
2
Dusky FlycatcherEmpidonax oberholseri
Sep 11, 2026
1
Black-capped ChickadeePoecile atricapillus
Sep 11, 2026
3
American GoldfinchSpinus tristis
Sep 11, 2026
1
Brown-headed CowbirdMolothrus ater
Sep 11, 2026
2
Great-tailed GrackleQuiscalus mexicanus
Sep 11, 2026
2
MacGillivray's WarblerGeothlypis tolmiei
Sep 11, 2026
1
Townsend's WarblerSetophaga townsendi
Sep 11, 2026
2

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