NEPA--Environmental Assessment

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Table C-4. Migratory Bird Species List Migratory birds that are listed on the FWS BCR 16 list, PIF PA 62 list, Colorado Listing of Endangered, Threatened and Wildlife Species of Special Concern, and USFS Rocky Mountain Region Sensitive Species List, BLM’s Colorado State Director’s Sensitive Species list, with likelihood to occur in the Silverton Landscape. Likelihood of Species Status* Preferred Habitats Occurrence @ Season of Occurrence Analysis Group American Bittern FS Riparian/Wetlands (cattail Low N/A N/A – no suitable marshes marsh) in Landscape American Dipper PIF Riparian/Wetlands (fast- High Breeding Riparian/Wetlands moving streams) Season American Pipit PIF Alpine Tundra, cultivated High Breeding Alpine Tundra agriculture Season American Three- FS Spruce-Fir, cool-moist High Year Round Cavity Constructors toed Woodpecker Mixed Conifer Bald Eagle FS, State Riparian/Wetlands Low N/A N/A – no cottonwood (cottonwood gallery gallery forest, nesting or forest), Grassland, winter foraging habitat in Sagebrush, Pinyon- Juniper, Ponderosa Pine Landscape Band-tailed Pigeon PIF Ponderosa Pine Low N/A N/A - no suitable ponderosa pine forest in Landscape Black Swift FS, BCR, Riparian/Wetlands High Breeding Riparian/Wetlands PIF (waterfalls) Season Black Tern BLM Riparian/Wetlands (cattail Low N/A N/A, not known to occur in marsh) San Juan County Black-throated Gray BCR Pinyon-Juniper Low N/A N/A, not known to occur in Warbler San Juan County Boreal Owl FS, PIF Spruce-Fir High Year Round Cavity Dependant Brewer’s Sparrow FS, PIF Sagebrush Low N/A N/A, no suitable sagebrush in Landscape Broad-tailed PIF Mountain Shrub, Aspen, High Breeding Mixed-conifer Hummingbird Ponderosa Pine, Mixed Conifer, Riparian/Wetland Season Brown-capped Rosy Finch PIF Alpine Tundra High Year Round Alpine Tundra Columbian Sharp- FS, BLM, Mountain Shrub Low N/A N/A, not known to occur in tailed Grouse State, MIS San Juan County Cordilleran PIF Riparian/Wetlands High Breeding Riparian/Wetlands Flycatcher (canyon streams) Season Dusky Grouse PIF Mixed Conifer High Year Round Mixed-conifer Ferruginous Hawk FS, BLM, Agricultural, Grasslands Low N/A N/A, not known to occur in BCR, State San Juan County Flammulated Owl FS, BCR, Ponderosa Pine, mixed- High Breeding Mixed-conifer PIF conifer Season Golden Eagle BCR Barren (rock cliffs), Agricultural, Grasslands, Alpine Tundra High Year Round Cliff Nesters Grace’s Warbler BCR, PIF Ponderosa Pine Low N/A N/A, not known to occur in San Juan County Gray Vireo BCR Pinyon-Juniper Low N/A N/A, not known to occur in San Juan County Green-tailed PIF, MIS Mountain Shrub, Low N/A N/A, not known to occur in Towhee Sagebrush San Juan County Gunnison Sage FS, BLM, Sagebrush Low N/A N/A, not known to occur in Grouse BCR, ESA, PIF, State San Juan County 117
Likelihood of Species Status* Preferred Habitats Occurrence @ Season of Occurrence Analysis Group Hairy Woodpecker MIS Ponderosa Pine, Mixed Conifer, Spruce-Fir, Aspen, Pinyon-Juniper, Riparian/Wetlands (cottonwood gallery forest) High Year Round Cavity Constructors Hammond’s PIF Mixed Conifer, Spruce-Fir High Breeding Spruce-fir Flycatcher Season Lazuli Bunting PIF Riparian/Wetlands High Breeding Riparian/Wetlands (Riparian shrublands) Season Lewis’ Woodpecker FS, BCR, Ponderosa Pine, Low N/A N/A no ponderosa pine or PIF Riparian/Wetlands cottonwood gallery forest (cottonwood gallery forest) in Landscape Loggerhead Shrike FS Agriculture, Pinyon- Low N/A N/A, no sagebrush or Juniper Sagebrush, suitable shrublands in Landscape MacGillivray’s PIF Riparian/Wetlands High Breeding Riparian/Wetlands Warbler (Riparian shrublands) Season Mallard MIS Riparian/Wetlands (lakes High Breeding Riparian/Wetlands and rivers) Season Merriam’s Turkey MIS Ponderosa Pine, Mixed Moderate Breeding Mixed-conifer Conifer, Grasslands, Aspen, Mountain Shrub Season Mexican Spotted ESA, PIF, Mixed Conifer Low N/A N/A, not known to occur in Owl State, MIS San Juan County Mountain Bluebird MIS Ponderosa Pine, Mixed High Breeding Cavity Dependant Conifer, Spruce-Fir, Aspen, Pinyon-Juniper, Sagebrush, Grasslands Season Northern Goshawk BLM, MIS Ponderosa Pine, Mixed Conifer, Spruce-Fir, Aspen High Year Round Spruce-fir Northern Harrier FS, BCR Agricultural, Low N/A N/A – no suitable wetlands Riparian/Wetlands (cattail or cattail marshes in marsh) Landscape Olive-sided FS, PIF Mixed Conifer, Ponderosa High Breeding Spruce-fir Flycatcher Pine, Spruce-Fir Season Peregrine Falcon BLM, Barren (rock cliffs) Moderate Breeding Cliff Nesters BCR, State Season Pinyon Jay BCR Pinyon-Juniper Low N/A N/A, not known to occur in Prairie Falcon BCR Barren (rock cliffs), Grasslands High Breeding Season San Juan County Cliff Nesters Purple Martin FS, PIF Aspen Low N/A N/A, not known to occur in San Juan County Red-naped PIF Aspen High Breeding Cavity Constructors Sapsucker Season Sage Sparrow BCR, PIF Sagebrush Low N/A N/A, not known to occur in San Juan County Short-eared Owl FS, BCR, Agricultural, Low N/A N/A – no suitable wetlands PIF Riparian/Wetlands (cattail or cattail marshes in marsh) Landscape Southwestern ESA, State, Riparian/Wetlands Low N/A N/A, not known to occur in Willow Flycatcher MIS (Riparian shrublands) San Juan County Swainson’s Hawk BCR Agricultural Low N/A N/A, not known to occur in San Juan County Violet-green PIF Aspen, Ponderosa Pine, High Breeding Cavity Dependant Swallow Barren (rock cliffs) Season Virginia’s Warbler BCR, PIF Mountain Shrub Low N/A N/A no Gambel oak or mountain shrub communities Landscape 118
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United States Department of Agricul
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Silverton Landscape Grazing Analysi
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These issues led the agency to deve
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administered with shared facilities
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Engine Creek/Deer Creek Allotment T
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Gladstone Allotment This allotment
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Gulch. In 1956, the numbers decreas
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Figure 1-1. Project Analysis Area 1
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Specific Management Emphasis Areas
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Livestock Grazing Permits Livestock
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Figure 1-3. Management Emphasis Are
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Desired Conditions for Bighorn: Red
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Figure 1-4. 2008 Data Collection Po
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Figure 1-6. Wilderness Overlap 24
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Issues ____________________________
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CHAPTER 2 - ALTERNATIVES This chapt
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Alternative Livestock Bedding 2 3 S
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Alternative Noxious Plants/Invasive
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Table 2-2. Project Design Criteria
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Alternative Minimization of Threat
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Alternative 2 - Current Management_
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Elk Creek Allot • Do not use the
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Figure 2-1. Proposed Action - Avoid
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Monitoring for Alternative 3 Monito
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• Photographs and Photo-points: P
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years in an emergency situation, su
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Comparison of Alternatives ________
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Water Quality _____________________
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ENVIRONMENTAL CONSEQUENCES Alternat
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from water or bedgrounds (Arnold an
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2008). It differs from the wetland
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Red Mountain Allotment Yellow toadf
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unlikely that any of these species
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Recreation Special Use Permits for
Page 69 and 70: livestock management would not chan
Page 71 and 72: Concurrent to this grazing analysis
Page 73 and 74: Alternative 2 Habitat conditions fo
Page 75 and 76: intensity on alpine plants appeared
Page 77 and 78: the other two species due to the co
Page 79 and 80: lack bighorn sheep escape cover. Th
Page 81 and 82: trailing route, and lack of bighorn
Page 83 and 84: Similar to Alternative 2, selecting
Page 85 and 86: ptarmigan is expected under Alterna
Page 87 and 88: CUMULATIVE IMPACTS Global warming i
Page 89 and 90: Wildlife - Management Indicator Spe
Page 91 and 92: and it will not be discussed in det
Page 93 and 94: Selecting Alternative 2 would have
Page 95 and 96: for MIS in the landscape. Wildlife
Page 97 and 98: The alpine tundra group would benef
Page 99 and 100: species of conservation concern as
Page 101 and 102: management options, while others ma
Page 103 and 104: prior to evaluating them for the NR
Page 105 and 106: present state. In general, where un
Page 107 and 108: CHAPTER 4 - CONSULTATION AND COORDI
Page 109 and 110: APPENDIX B - CITATIONS AND REFERENC
Page 111 and 112: Martin, K.D., T.J. Schommer, and V.
Page 113 and 114: Regional Office, Durango, CO. Weste
Page 115 and 116: Species Habitat Present In the Spec
Page 117 and 118: Species Mammals (13) Allen’s big-
Page 119: MIS Species Preferred Habitat Broug
Page 123 and 124: APPENDIX D - BIGHORN RISK ASSESSMEN
Page 125 and 126: Silverton Grazing Risk Assessment T
Page 127 and 128: Silverton Grazing Risk Assessment a
Page 129 and 130: Silverton Grazing Risk Assessment b
Page 131 and 132: Silverton Grazing Risk Assessment N
Page 133 and 134: Silverton Grazing Risk Assessment i
Page 139 and 140: Silverton Grazing Risk Assessment M
Page 143 and 144: Silverton Grazing Risk Assessment A
Page 145 and 146: Silverton Grazing Risk Assessment R
Page 147 and 148: Silverton Grazing Risk Assessment m
Page 151 and 152: Silverton Grazing Risk Assessment H
Page 153 and 154: Silverton Grazing Risk Assessment F
Page 155 and 156: Silverton Grazing Risk Assessment F
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NEPA--Environmental Assessment

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