Final Environmental Impact Statement Rio de los Pinos Vegetation ...

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Final Environmental Impact Statement Rio de los Pinos Vegetation Management Project areas encompassed by the BCR’s. At the finest scale of analysis, the Rio Grande National Forest occurs within the Southern Rocky Mountains Physiographic Area (Area 62) of the Southern Rockies Colorado Plateau Bird Conservation Region. The following are the Birds of Conservation Concern for BCR 16 as updated in December 2008, their status within the project area, and projected influence from management activities proposed within the Rio de los Pinos Analysis Area EIS. Summary of Effects of Alternatives on Migratory Birds: A review of the migratory bird table indicates that five species on the Birds of Conservation Concern (BCC) List for BCR 16 are excluded from analysis because they do not occur or are considered accidental on the Rio Grande National Forest and will therefore not be affected by any management actions. These species include the veery, gray vireo, black rosy finch, Grace’s warbler, and chestnut collared longspur. Other species that would not be expected to occur or do not have habitat present in the area of influence for this project include the American bittern, bald eagle, ferruginous hawk, golden eagle, peregrine falcon, prairie falcon, Gunnison’s sage grouse, snowy plover, mountain plover, long-billed curlew, willow flycatcher, juniper titmouse, yellow billed cuckoo, flammulated owl, burrowing owl, Lewis’ woodpecker, pinyon jay, Bendire’s thrasher, Brewer’s sparrow, and grashopper sparrow. Species likely to occur within the Analysis Area include Cassin’s Finch (USFWS Birds of Conservation Concern for BCR 16). Project design criteria regarding snag retention and not harvesting trees with active bird nests would help to conserve this species. The following table lists Priority habitats and species from the Colorado Landbird Conservation Plan and potential impacts of this project on those species and habitats. Table 3.9-3 Priority habitats and species of the Southern Rocky Mountains province and their relationship to assessment for the Rio de los Pinos project. Table 3.9-3. Priorty habitats and species of the Southern Rockies Priority Habitat Type Alpine Tundra BCP Priority Species White-tailed ptarmigan American pipit Brown-capped rosy finch BCP Potential Issues(s) Fragile Habitats; Specialized Species Potential Influence from Project Activities Timber harvest would not occur in alpine tundra habitats. Effect of Alternatives White-tailed ptarmigan evaluated as R2 Sensitive Species. No effects anticipated as a result of this project. Chapter 3 – Affected Environment & Environmental Consequences Page 3-58
Final Environmental Impact Statement Rio de los Pinos Vegetation Management Project Table 3.9-3. Priorty habitats and species of the Southern Rockies Priority Habitat Type Aspen Cliff/Rock High Elevation Riparian BCP Priority Species Red-naped sapsucker Purple martin Violet-green swallow Peregrine falcon Black swift Cordilleran flycatcher American dipper MacGillivray’s warbler Wilson’s warbler BCP Potential Issues(s) Grazing, snag habitat, Altered disturbance regimes Rock climbing; mining Grazing, Recreation impacts Potential Influence from Project Activities No issues identified. Minor aspen component in Analysis Area. No issues identified. Willow habitat will be protected from harvest activities. Harvest activities could result in temporary disturbance to individuals. Effect of Alternatives No negative, but potential positive impacts (regeneration) to aspen habitat as a result of this project. Peregrine falcon and black swift evaluated as R2 Sensitive species. Peregrine falcons or black swifts are not known to occur in Analysis Area. No effects anticpated on species or habitat. Wilson’s warbler evaluated as RGNF Management Indicator Species. Minimal to no impacts to habitat anticipated under any of the alternatives. Minor disturbance possible from nearby harvest activities. Chapter 3 – Affected Environment & Environmental Consequences Page 3-59
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