Birds in Colorado

Explore 142 species found in this region.

Visiting in April? Look out for Baird's Sandpiper and Barn Swallow arriving this month, and American Tree Sparrow and Greater White-fronted Goose depart for the season.

Ruby-crowned Kinglet
Ruby-crowned KingletSmallest · 9cm
to
Trumpeter Swan
Trumpeter SwanLargest · 157cm
Ranges from the Ruby-crowned Kinglet (9cm) to the Trumpeter Swan (157cm)37 families represented

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Showing 47–69 of 142 species

Great Blue Heron

Great Blue Heron

Ardea herodiasLC

ResidentUncommonly spotted

Year-round

J
F
M
A
M
J
J
A
S
O
N
D
Great Horned Owl

Great Horned Owl

Bubo virginianusLC

ResidentUncommonly spotted

Year-round

J
F
M
A
M
J
J
A
S
O
N
D
Great White Egret

Great White Egret

Ardea albaLC

BreedingRarely spotted

Apr–Oct

J
F
M
A
M
J
J
A
S
O
N
D
Greater Scaup

Greater Scaup

Aythya marilaLC

Non-breedingRarely spotted

Nov–Apr

J
F
M
A
M
J
J
A
S
O
N
D
Greater White-fronted Goose

Greater White-fronted Goose

Anser albifronsLC

Non-breedingRarely spotted

Nov–Mar

J
F
M
A
M
J
J
A
S
O
N
D
Greater Yellowlegs

Greater Yellowlegs

Tringa melanoleucaNT

BreedingRarely spotted

Mar–Nov

J
F
M
A
M
J
J
A
S
O
N
D
Grey Plover

Grey Plover

Pluvialis squatarolaLC

PassageRarely spotted

Oct

J
F
M
A
M
J
J
A
S
O
N
D
Hairy Woodpecker

Hairy Woodpecker

Leuconotopicus villosusLC

ResidentUncommonly spotted

Year-round

J
F
M
A
M
J
J
A
S
O
N
D

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Hermit Thrush

Hermit Thrush

Catharus guttatusLC

BreedingRarely spotted

Apr–Oct

J
F
M
A
M
J
J
A
S
O
N
D
Hooded Merganser

Hooded Merganser

Lophodytes cucullatusLC

ResidentUncommonly spotted

Sep–May

J
F
M
A
M
J
J
A
S
O
N
D
Horned Grebe

Horned Grebe

Podiceps auritusVU

Non-breedingRarely spotted

Oct–Apr

J
F
M
A
M
J
J
A
S
O
N
D
Horned Lark

Horned Lark

Eremophila alpestrisLC

ResidentUncommonly spotted

Year-round

J
F
M
A
M
J
J
A
S
O
N
D
House Finch

House Finch

Haemorhous mexicanusLC

ResidentCommonly spotted

Year-round

J
F
M
A
M
J
J
A
S
O
N
D
House Sparrow

House Sparrow

Passer domesticusLC

ResidentUncommonly spotted

Year-round

J
F
M
A
M
J
J
A
S
O
N
D
Iceland Gull

Iceland Gull

Larus glaucoidesLC

Non-breedingRarely spotted

Nov–Mar

J
F
M
A
M
J
J
A
S
O
N
D
Ladder-backed Woodpecker

Ladder-backed Woodpecker

Dryobates scalarisLC

PassageRarely spotted

May–Sep

J
F
M
A
M
J
J
A
S
O
N
D
Lapland Longspur

Lapland Longspur

Calcarius lapponicusLC

Non-breedingRarely spotted

Nov–Jan

J
F
M
A
M
J
J
A
S
O
N
D
Lark Sparrow

Lark Sparrow

Chondestes grammacusLC

BreedingUncommonly spotted

Apr–Sep

J
F
M
A
M
J
J
A
S
O
N
D
Least Flycatcher

Least Flycatcher

Empidonax minimusLC

PassageRarely spotted

May

J
F
M
A
M
J
J
A
S
O
N
D
Least Sandpiper

Least Sandpiper

Calidris minutillaNT

BreedingRarely spotted

Apr–Oct

J
F
M
A
M
J
J
A
S
O
N
D
Lesser Black-backed Gull

Lesser Black-backed Gull

Larus fuscusLC

Non-breedingRarely spotted

Oct–Mar

J
F
M
A
M
J
J
A
S
O
N
D
Lesser Yellowlegs

Lesser Yellowlegs

Tringa flavipesVU

BreedingRarely spotted

Apr–Oct

J
F
M
A
M
J
J
A
S
O
N
D
Lewis's Woodpecker

Lewis's Woodpecker

Melanerpes lewisLC

BreedingRarely spotted

Apr–Oct

J
F
M
A
M
J
J
A
S
O
N
D
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