Bird

Birds of tundra habitats on Niwot Ridge and vicinity 

(Status: r = year-around resident, breeder; b = summer resident, breeder; p = possible breeder; n = summer visitor, non?breeder; m = migrant.)

Data from Kingery and Graul (1978), Andrews and Righter (1992), and Kingery (1998).  from :Armstrong, David M., James C. Halfpenny, and Charles H. Southwick.  2001.  Vertebrates, in Bowman, W.D. and Seastedt, T.R.  Structure and Function of an Alpine Ecosystem, Niwot Ridge, Colorado.  pp 128- 156.  Oxford University Press, New York.
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Falconiformes: Accipitridae--Hawks
     Northern Harrier--Circus cyaneus (n)
    Red tailed Hawk Buteo jamaicensis (n)
    Swainson's Hawk Buteo swainsoni (n)
    Rough-legged Hawk--Buteo lagopus (n)
    Ferruginous Hawk--Buteo regalis (n)
    Golden Eagle Aguila chrysaetos (n)
Falconiformes: Falconidae--Falcons
    Prairie Falcon Falco mexicanus (n)
    Peregrine Falcon Falco peregrinus (m)
Galliformes: Phasianidae--Grouse
    White-tailed Ptarmigan--Lagopus leurucus (r)
Columbiformes: Columbidae--Doves
    Mourning Dove Zenaida macroura (n)
Passeriformes: Alaudidae--Larks
    Horned Lark Eremophila alpestris (b)
Passeriformes: Corvidae--Crows and allies
    Common Raven Corvus corax (n)
    Clark's Nutcracker Nucifraga columbiana (n)
Passeriformes: Troglodytidae--Wrens
    Rock Wren Salpinctes obsoletus  (p)
Passeriformes: Turdidae--Thrushes
    American Robin Turdus migratorius (n)
    Mountain Bluebird Sialia currucoides (n)
Passeriformes: Motacillidae--Pipits
    American Pipit Anthus rubescens (b)
Passeriformes: Emberizidae, Emberizinae--Sparrows and Allies
    Vesper Sparrow Pooecetes gramineus (n)
    Savannah Sparrow--Passerculus sandwichensis (m)
    White crowned Sparrow Zonotrichia leucophrys (b)
Passeriformes: Fringillidae--Finches
     Brown capped Rosy Finch Leucosticte arctoa (b)