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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, Mallard, American Coot in the area.

301
All-Time Species
67
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
Nov 3, 2026
40
MallardAnas platyrhynchos
Nov 3, 2026
20
American CootFulica americana
Nov 3, 2026
20
Bonaparte's GullChroicocephalus philadelphia
Nov 3, 2026
6
Ring-billed GullLarus delawarensis
Nov 3, 2026
20
American Herring GullLarus smithsonianus
Nov 3, 2026
2
California GullLarus californicus
Nov 3, 2026
2
Eared GrebePodiceps nigricollis
Nov 3, 2026
5
Western GrebeAechmophorus occidentalis
Nov 3, 2026
200
Clark's GrebeAechmophorus clarkii
Nov 3, 2026
1
Northern HarrierCircus hudsonius
Nov 3, 2026
1
Red-tailed HawkButeo jamaicensis
Nov 3, 2026
1
Horned LarkEremophila alpestris
Nov 3, 2026
1
European StarlingSturnus vulgaris
Nov 3, 2026
500
House FinchHaemorhous mexicanus
Nov 3, 2026
2
American Tree SparrowSpizelloides arborea
Nov 3, 2026
1
White-crowned SparrowZonotrichia leucophrys
Nov 3, 2026
2
Song SparrowMelospiza melodia
Nov 3, 2026
3
Red-winged BlackbirdAgelaius phoeniceus
Nov 3, 2026
700
Brewer's BlackbirdEuphagus cyanocephalus
Nov 3, 2026
20
Rock PigeonColumba livia
Nov 2, 2026
2
Eurasian Collared-DoveStreptopelia decaocto
Nov 2, 2026
8
Great Blue HeronArdea herodias
Nov 2, 2026
1
American White PelicanPelecanus erythrorhynchos
Nov 2, 2026
4
Bald EagleHaliaeetus leucocephalus
Nov 2, 2026
1
Belted KingfisherMegaceryle alcyon
Nov 2, 2026
2
Northern FlickerColaptes auratus
Nov 2, 2026
4
American KestrelFalco sparverius
Nov 2, 2026
1
Blue JayCyanocitta cristata
Nov 2, 2026
2
American RobinTurdus migratorius
Nov 2, 2026
1
House SparrowPasser domesticus
Nov 2, 2026
4
Western MeadowlarkSturnella neglecta
Nov 2, 2026
5
Ruddy DuckOxyura jamaicensis
Oct 30, 2026
20
KilldeerCharadrius vociferus
Oct 30, 2026
1
Franklin's GullLeucophaeus pipixcan
Oct 30, 2026
1
Horned GrebePodiceps auritus
Oct 30, 2026
2
BushtitPsaltriparus minimus
Oct 29, 2026
8
BuffleheadBucephala albeola
Oct 27, 2026
10
Common MerganserMergus merganser
Oct 27, 2026
5
Greater YellowlegsTringa melanoleuca
Oct 27, 2026
1
Northern ShovelerSpatula clypeata
Oct 26, 2026
X
GadwallMareca strepera
Oct 26, 2026
X
American WigeonMareca americana
Oct 26, 2026
X
Oct 26, 2026
X
Mourning DoveZenaida macroura
Oct 26, 2026
1
Black-bellied PloverPluvialis squatarola
Oct 26, 2026
2
Say's PhoebeSayornis saya
Oct 26, 2026
1
American PipitAnthus rubescens
Oct 26, 2026
1
Brown-headed CowbirdMolothrus ater
Oct 26, 2026
3
Yellow-rumped WarblerSetophaga coronata
Oct 26, 2026
1
Oct 25, 2026
15
Pied-billed GrebePodilymbus podiceps
Oct 25, 2026
1
MerlinFalco columbarius
Oct 25, 2026
1
American CrowCorvus brachyrhynchos
Oct 25, 2026
3
Black-capped ChickadeePoecile atricapillus
Oct 25, 2026
1
Dark-eyed JuncoJunco hyemalis
Oct 25, 2026
1
Golden EagleAquila chrysaetos
Oct 24, 2026
1
Cooper's HawkAstur cooperii
Oct 24, 2026
1
Blue-winged TealSpatula discors
Oct 22, 2026
1
CanvasbackAythya valisineria
Oct 22, 2026
6
RedheadAythya americana
Oct 22, 2026
4
Sandhill CraneAntigone canadensis
Oct 22, 2026
X
Common LoonGavia immer
Oct 22, 2026
1
Common GrackleQuiscalus quiscula
Oct 22, 2026
2
Great-tailed GrackleQuiscalus mexicanus
Oct 22, 2026
1
Sabine's GullXema sabini
Oct 22, 2026
1
Cackling GooseBranta hutchinsii
Oct 21, 2026
2

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