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Bird Observations

Date Range:
Jan-Dec, 1900-2025

Rocky Mountain Arsenal NWR--Lake Ladora

Updated ~44 hr(s) ago.

236 species (+65 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Snow/Ross's Goose
Cackling/Canada Goose
Snow/Ross's x Cackling/Canada Goose (hybrid)
goose sp.
Blue-winged/Cinnamon Teal
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mallard/Mexican Duck
Gadwall x Northern Pintail (hybrid)
teal sp.
dabbling duck sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Greater/Lesser Scaup
Aythya sp.
Bufflehead x Common Goldeneye (hybrid)
Common/Barrow's Goldeneye
Common/Red-breasted Merganser
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
duck sp.
pigeon/dove sp.
hummingbird sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Short-billed/Long-billed Dowitcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lesser/Greater Yellowlegs
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Western/Semipalmated Sandpiper
peep sp.
Calidris sp.
shorebird sp.
Larus sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
gull sp.
Horned/Eared Grebe
Western/Clark's Grebe
grebe sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
loon sp.
Double-crested/Neotropic Cormorant
Yellow-crowned/Black-crowned Night Heron
heron sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sharp-shinned/Cooper's Hawk
Accipitrine hawk sp. (former Accipiter sp.)
Golden/Bald Eagle
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Buteo sp.
Buteo/eagle sp.
hawk sp.
Downy/Hairy Woodpecker
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
small falcon sp.
falcon sp.
diurnal raptor sp.
Western/Eastern Wood-Pewee
pewee sp. (Contopus sp.)
Empidonax sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Cassin's/Western Kingbird
new world flycatcher sp.
raven sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
crow/raven sp.
Black-capped/Mountain Chickadee
Tree/Violet-green Swallow
swallow sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
nuthatch sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
bluebird sp.
thrush sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Spizella sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lincoln's/Swamp Sparrow
new world sparrow sp.
Western/Eastern Meadowlark
Sturnella meadowlark sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
grackle sp.
blackbird sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
new world warbler sp.
Lazuli/Indigo Bunting
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
passerine sp.

KEY:| = insufficient data | = rare to widespread

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