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Union Reservoir

Located in the Colorado, USA area, Union Reservoir is a popular birding destination. Recently, birders have spotted Blue-winged Teal, Cinnamon Teal, Mallard in the area.

298
All-Time Species
94
Sightings (14 days)
Colorado
Region
United States
Country

Location Map

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Live eBird Sightings

Trailing 14 Days
Species
Date Spotted
Count
Blue-winged TealSpatula discors
May 25, 2026
1
Cinnamon TealSpatula cyanoptera
May 25, 2026
2
MallardAnas platyrhynchos
May 25, 2026
1
May 25, 2026
1
Mourning DoveZenaida macroura
May 25, 2026
2
Black-necked StiltHimantopus mexicanus
May 25, 2026
2
American AvocetRecurvirostra americana
May 25, 2026
6
KilldeerCharadrius vociferus
May 25, 2026
3
Ring-billed GullLarus delawarensis
May 25, 2026
5
Western GrebeAechmophorus occidentalis
May 25, 2026
1
Great Blue HeronArdea herodias
May 25, 2026
1
American White PelicanPelecanus erythrorhynchos
May 25, 2026
8
Red-tailed HawkButeo jamaicensis
May 25, 2026
1
Western KingbirdTyrannus verticalis
May 25, 2026
1
Western MeadowlarkSturnella neglecta
May 25, 2026
1
Red-winged BlackbirdAgelaius phoeniceus
May 25, 2026
15
Brown-headed CowbirdMolothrus ater
May 25, 2026
6
Spotted SandpiperActitis macularius
May 25, 2026
2
Baird's SandpiperCalidris bairdii
May 25, 2026
1
Franklin's GullLeucophaeus pipixcan
May 25, 2026
6
Say's PhoebeSayornis saya
May 25, 2026
1
Eastern KingbirdTyrannus tyrannus
May 25, 2026
1
Blue JayCyanocitta cristata
May 25, 2026
1
Horned LarkEremophila alpestris
May 25, 2026
1
Northern Rough-winged SwallowStelgidopteryx serripennis
May 25, 2026
1
Barn SwallowHirundo rustica
May 25, 2026
8
Cliff SwallowPetrochelidon pyrrhonota
May 25, 2026
10
European StarlingSturnus vulgaris
May 25, 2026
8
Savannah SparrowPasserculus sandwichensis
May 25, 2026
1
Song SparrowMelospiza melodia
May 25, 2026
2
Common GrackleQuiscalus quiscula
May 25, 2026
2
Common YellowthroatGeothlypis trichas
May 25, 2026
3
Canada GooseBranta canadensis
May 24, 2026
2
GadwallMareca strepera
May 24, 2026
8
Wilson's PhalaropePhalaropus tricolor
May 24, 2026
4
American RobinTurdus migratorius
May 24, 2026
3
Yellow-headed BlackbirdXanthocephalus xanthocephalus
May 24, 2026
1
Great-tailed GrackleQuiscalus mexicanus
May 24, 2026
2
Northern Yellow WarblerSetophaga aestiva
May 24, 2026
3
Northern ShovelerSpatula clypeata
May 22, 2026
15
American CootFulica americana
May 22, 2026
32
Black-bellied PloverPluvialis squatarola
May 22, 2026
3
Red-necked PhalaropePhalaropus lobatus
May 22, 2026
15
Stilt SandpiperCalidris himantopus
May 22, 2026
4
OspreyPandion haliaetus
May 22, 2026
1
Bald EagleHaliaeetus leucocephalus
May 22, 2026
1
American KestrelFalco sparverius
May 22, 2026
1
American CrowCorvus brachyrhynchos
May 22, 2026
2
Tree SwallowTachycineta bicolor
May 22, 2026
25
Northern House WrenTroglodytes aedon
May 22, 2026
1
House SparrowPasser domesticus
May 22, 2026
5
Cooper's HawkAstur cooperii
May 22, 2026
1
Northern FlickerColaptes auratus
May 22, 2026
1
Western Wood-PeweeContopus sordidulus
May 22, 2026
3
House FinchHaemorhous mexicanus
May 22, 2026
5
American GoldfinchSpinus tristis
May 22, 2026
2
Chipping SparrowSpizella passerina
May 22, 2026
1
Bullock's OrioleIcterus bullockii
May 22, 2026
1
RedheadAythya americana
May 22, 2026
2
Ruddy DuckOxyura jamaicensis
May 22, 2026
5
Rock PigeonColumba livia
May 22, 2026
2
Eurasian Collared-DoveStreptopelia decaocto
May 22, 2026
2
White-rumped SandpiperCalidris fuscicollis
May 22, 2026
1
Western SandpiperCalidris mauri
May 22, 2026
1
Semipalmated SandpiperCalidris pusilla
May 22, 2026
2
Eared GrebePodiceps nigricollis
May 22, 2026
8
Clark's GrebeAechmophorus clarkii
May 22, 2026
2
Bank SwallowRiparia riparia
May 22, 2026
X
Violet-green SwallowTachycineta thalassina
May 22, 2026
X
Vesper SparrowPooecetes gramineus
May 22, 2026
1
Brewer's BlackbirdEuphagus cyanocephalus
May 22, 2026
1
Long-billed DowitcherLimnodromus scolopaceus
May 22, 2026
4
Brewer's SparrowSpizella breweri
May 22, 2026
1
White-crowned SparrowZonotrichia leucophrys
May 22, 2026
2
Blue GrosbeakPasserina caerulea
May 22, 2026
2
Lesser YellowlegsTringa flavipes
May 21, 2026
1
Least SandpiperCalidris minutilla
May 21, 2026
2
Marbled GodwitLimosa fedoa
May 20, 2026
1
Greater YellowlegsTringa melanoleuca
May 20, 2026
1
Dusky FlycatcherEmpidonax oberholseri
May 20, 2026
1
Lark SparrowChondestes grammacus
May 20, 2026
3
Yellow-rumped WarblerSetophaga coronata
May 20, 2026
2
Forster's TernSterna forsteri
May 19, 2026
1
Downy WoodpeckerDryobates pubescens
May 19, 2026
1
Peregrine FalconFalco peregrinus
May 19, 2026
2
American PipitAnthus rubescens
May 18, 2026
1
Bonaparte's GullChroicocephalus philadelphia
May 18, 2026
1
Swainson's ThrushCatharus ustulatus
May 18, 2026
1
Snowy PloverAnarhynchus nivosus
May 17, 2026
1
BuffleheadBucephala albeola
May 14, 2026
1
Double-crested CormorantNannopterum auritum
May 14, 2026
5
BushtitPsaltriparus minimus
May 14, 2026
2
White-breasted NuthatchSitta carolinensis
May 14, 2026
1
Blue-gray GnatcatcherPolioptila caerulea
May 14, 2026
1

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