Presented by Colorado Bird Atlas Partnership:

The Second Colorado Breeding Bird Atlas

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  • Atlas Methods ~ Habitat Codes & Descriptions

    Among the more important aspects of both of Colorado’s Breeding Bird Atlases was the additional data collected on habitat selection. The following Atlas habitat codes were applied to Possible, Probable, and Confirmed records.

    Grassland

    TSG – Shortgrass prairie
    TTG – Taller grass
    TTC – Cactus grassland
    TMGB – Western intermountain grassland
    TMG – Montane grassland
    TMXP – Introduced grasses
    THF – Hayfield
    TAL – Alpine tundra

    Shrubland

    SBR – Sagebrush (default category)
    SMS – Montane sagebrush (mountains and Western Slope)
    SSS – Sand sagebrush (Eastern Plains)
    SMT – Mat saltbush
    SOS – Oak scrub
    SMM – Montane shrubland
    SLE – Low-elevation shrubland
    STD – Tall desert shrubland
    SSL# – Logged-over area
    SBL# – Burned-over area
    SSB – Shelterbelt
    SSBW – Wildlife shelterbelt
    SSBR – Rural shelterbelt

    Woodland and Forest

    WPJ – Pinyon-Juniper woodland
    WJJ – Juniper woodland
    WPP – Ponderosa pine woodland
    WPO – Ponderosa pine-Oak
    FUC – Upland coniferous forest (default, unspecified)
    FUCB – Bristlecone pine
    FUCD – Douglas-fir
    FUCL – Lodgepole pine
    FUCM – Mixed conifer
    FUCR – Limber pine
    FUCS – Engelmann spruce/Subalpine fir
    SKR – Krummholz
    SBT# – Beetle-killed forest
    FAM – Mixed aspen stands (≤50% conifer)
    FAP – Pure aspen forest (<5% conifer)
    FASD – Sudden Aspen Decline (dead aspen stands)

    Riparian

    LRD – Low-elevation riparian
    FRD – Riparian deciduous forest
    FRC – Riparian coniferous forest
    SMC – Mid-elevation carr
    SBC – High-elevation carr

    Wetland

    ASG – Salt meadow
    AEM – Emergent wetland (marsh)
    ASU – Submergent/floating wetland
    ASL – Shoreline
    OWL – Lake/pond
    OWS – Stream/river

    Urban, Rural, and Agricultural

    URB – Residential/urban
    RRL – Rural
    CWD – Cultivated woodlands
    CPL – Cropland
    TSU – Barren ground
    MSB – Bridge
    MSP – Pole

    Cliff and Bank

    MCL – Cliff
    MBK – Bank

    Miscellaneous

    MSC – Miscellaneous (talus, scree, rock, hanging garden, cave, man-made structure not listed above)

     

    Grassland Habitat
    Photo by Lynn Wickersham

    Forest Habitat
    Photo by Hugh Kingery

    Wetland Habitat
    Photo by Randall Siebert