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surfaces in a stable condition which will not erode. Surfaces will be vegetated with a <br />seed mix that is approved by the BLM. Final reclamation will be implement when an <br />area will clearly not be used for operations in the future. Final reclamation will consist of <br />recontouring disturbed surfaces to natural contours and re-vegetating with a BLM- <br />approved native seed mixture. The operator would repeat seeding as needed to meet <br />BLM vegetation standards. Revegetation would be considered to be complete when a <br />permanent, reproducing plant community has been established that meets long-term use <br />goals. <br />7. Disturbed areas will be monitored annually for invasive, non-native species. <br />8. All vehicles and heavy machinery will be cleaned to remove seed and soil prior to and <br />after clearing vegetated surface areas. <br />9. The operator will spray for noxious weeds twice annually. Because musk thistle is listed <br />as a priority and enforceable weed by La Plata County, all musk thistle populations less <br />than one acre in size will be designated for eradication. Larger populations (>1 acre) will <br />be designated for incremental management. All noxious and invasive species which <br />occur on site will be eradicated using materials and methods approved in advance by the <br />BLM. <br />2.3.4 Migratory Birds <br />Executive Order 13186 enacted in 2001 requires federal agencies to consider the effects of the <br />Proposed Action on migratory birds. BLM Instruction Memorandum number 2008-050 was <br />reviewed for consistency and it was determined that the Fish and Wildlife Clearance Report, <br />completed on June 27, 2007, was consistent with IM direction for project level NEPA guidance. <br />The U.S. Fish and Wildlife Services (USFWS) maintains a list of Birds of Conservation Concern <br />(BCC) (Table 2). These are non-game avian species which the USFWS has identified as <br />conservation priorities, but which are currently not federally listed as threatened or endangered. <br />Table 2 lists the BCC for Region 16 (Southern Rocky Mountains/Colorado Plateau). Birds listed <br />by the USFWS as BCC with potential to occur in the project area include gray vireo (Vireo <br />vicinior), pinon jay (Gymnorhinus cyanocephalus), black-throated gray warbler (Dendroica <br />nigrescens), Virginia's warbler (Virmivora virginiae) and Lewis's woodpecker (Melanerpes <br />lewis). <br />Table 2. USFWS Birds of Conservation Concern - Region 16 (Southern Rockies/Colorado <br />Plateau). <br /> POTENTIAL TO OCCUR IN THE <br />SPECIES HABITAT DESCRIPTION ANALYSIS AREA <br />Black swift Vertical rock faces, near waterfalls No vertical rock faces, waterfalls or caves <br />(Cypseloides niger) or in dripping caves. in the analysis area. <br />Black-throated gray Almost exclusive to mature pinon- Potential foraging and limited breeding <br />warbler <br />juniper woodlands. <br />habitat occur in project area. <br />Dendroica ni rescens <br />Ferruginous hawk Winter migrant only; grasslands and No open grasslands or desert-scrub <br />(Buteo regalis) semi-desert shrub. habitat in the analysis area. <br />Flammulated owl Open ponderosa pine forests; d No ponderosa ine or mixed conifer <br />Grandview Gravel Pit Expansion Environmental Assessment 21