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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, Blue-winged Teal, Gadwall in the area.

299
All-Time Species
66
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
Aug 13, 2026
1
Blue-winged TealSpatula discors
Aug 13, 2026
10
GadwallMareca strepera
Aug 13, 2026
2
MallardAnas platyrhynchos
Aug 13, 2026
15
Rock PigeonColumba livia
Aug 13, 2026
11
Eurasian Collared-DoveStreptopelia decaocto
Aug 13, 2026
1
Mourning DoveZenaida macroura
Aug 13, 2026
15
American CootFulica americana
Aug 13, 2026
8
KilldeerCharadrius vociferus
Aug 13, 2026
30
Solitary SandpiperTringa solitaria
Aug 13, 2026
1
Baird's SandpiperCalidris bairdii
Aug 13, 2026
5
Ring-billed GullLarus delawarensis
Aug 13, 2026
15
Western GrebeAechmophorus occidentalis
Aug 13, 2026
10
Snowy EgretEgretta thula
Aug 13, 2026
2
Aug 13, 2026
1
Great Blue HeronArdea herodias
Aug 13, 2026
5
American White PelicanPelecanus erythrorhynchos
Aug 13, 2026
10
OspreyPandion haliaetus
Aug 13, 2026
1
Swainson's HawkButeo swainsoni
Aug 13, 2026
1
Red-tailed HawkButeo jamaicensis
Aug 13, 2026
1
Belted KingfisherMegaceryle alcyon
Aug 13, 2026
1
Downy WoodpeckerDryobates pubescens
Aug 13, 2026
1
Northern FlickerColaptes auratus
Aug 13, 2026
2
American KestrelFalco sparverius
Aug 13, 2026
1
Western Wood-PeweeContopus sordidulus
Aug 13, 2026
1
Say's PhoebeSayornis saya
Aug 13, 2026
1
Western KingbirdTyrannus verticalis
Aug 13, 2026
2
Eastern KingbirdTyrannus tyrannus
Aug 13, 2026
5
Blue JayCyanocitta cristata
Aug 13, 2026
1
Barn SwallowHirundo rustica
Aug 13, 2026
20
European StarlingSturnus vulgaris
Aug 13, 2026
40
House SparrowPasser domesticus
Aug 13, 2026
2
House FinchHaemorhous mexicanus
Aug 13, 2026
30
Chipping SparrowSpizella passerina
Aug 13, 2026
4
Brewer's SparrowSpizella breweri
Aug 13, 2026
1
Lark BuntingCalamospiza melanocorys
Aug 13, 2026
3
Bullock's OrioleIcterus bullockii
Aug 13, 2026
1
Red-winged BlackbirdAgelaius phoeniceus
Aug 13, 2026
10
Brown-headed CowbirdMolothrus ater
Aug 13, 2026
5
Brewer's BlackbirdEuphagus cyanocephalus
Aug 13, 2026
5
Common GrackleQuiscalus quiscula
Aug 13, 2026
3
Great-tailed GrackleQuiscalus mexicanus
Aug 13, 2026
5
Common YellowthroatGeothlypis trichas
Aug 13, 2026
1
Northern Yellow WarblerSetophaga aestiva
Aug 13, 2026
2
Bald EagleHaliaeetus leucocephalus
Aug 11, 2026
1
Yellow-headed BlackbirdXanthocephalus xanthocephalus
Aug 11, 2026
2
Clark's GrebeAechmophorus clarkii
Aug 11, 2026
2
Black-chinned HummingbirdArchilochus alexandri
Aug 6, 2026
1
Spotted SandpiperActitis macularius
Aug 6, 2026
3
Black-capped ChickadeePoecile atricapillus
Aug 6, 2026
1
Bank SwallowRiparia riparia
Aug 6, 2026
3
White-breasted NuthatchSitta carolinensis
Aug 6, 2026
1
American RobinTurdus migratorius
Aug 6, 2026
4
American GoldfinchSpinus tristis
Aug 6, 2026
1
Western MeadowlarkSturnella neglecta
Aug 6, 2026
1
Blue GrosbeakPasserina caerulea
Aug 6, 2026
1
Double-crested CormorantNannopterum auritum
Aug 5, 2026
10
Turkey VultureCathartes aura
Aug 5, 2026
1
American CrowCorvus brachyrhynchos
Aug 5, 2026
2
American AvocetRecurvirostra americana
Aug 3, 2026
1
Black-necked StiltHimantopus mexicanus
Aug 3, 2026
5
Vesper SparrowPooecetes gramineus
Aug 3, 2026
1
Savannah SparrowPasserculus sandwichensis
Aug 2, 2026
1
Song SparrowMelospiza melodia
Aug 2, 2026
1
Common RavenCorvus corax
Jul 31, 2026
1
Cliff SwallowPetrochelidon pyrrhonota
Jul 31, 2026
4

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