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2019 Biological Resources Inventory Report <br /> Table 3: <br /> Federally Listed Species Known to Occur in Adams County,Colorado <br /> Common Name Scientific Name' Status2 Likelihood of Occurrence in Project area/Habitat Suitability3 <br /> Mexican Spotted Owl Strix occidentalis FT Unlikely to occur.Habitat consists of mature mixed-conifer,pine-oak,and <br /> lucida riparian forest in canyon habitat.These habitat components are not <br /> present in the Project area.The Second Colorado Breeding Bird Atlas <br /> does not show elemental occurrences or breeding in Adams County for <br /> the Mexican Spotted Owl.No designated critical habitat for the Mexican <br /> Spotted Owl exists in the Project area. <br /> Piping Plover4 Charadrius melodus FT Unlikely to occur.Suitable habitat includes sparsely vegetated sandbars <br /> of rivers and sparsely vegetated and frequently alkaline beaches, <br /> lakeshores,and wetlands.The Project area is outside the typical breeding <br /> and wintering distribution for this species.This species occurs in the <br /> Platte River watershed downstream in Nebraska.In addition,the Second <br /> Colorado Breeding Bird Atlas does not show elemental occurrences or <br /> breeding in Adams County for the Piping Plover.No designated critical <br /> habitat for the Piping Plover exists in the Project area. <br /> Whooping Crane3 Grus americana FE Unlikely to occur.The Whooping Crane breeds,migrates,winters,and <br /> forages in a variety of wetland and other habitats,including coastal <br /> marshes and estuaries,inland marshes,lakes,ponds,wet meadows and <br /> rivers,and agricultural fields.The Project area is outside the typical <br /> distribution for this species.This species occurs in the Platte River <br /> watershed downstream in Nebraska.The Project does not anticipate <br /> causing any water depletions to the South Platte River.In addition,the <br /> Second Colorado Breeding Bird Atlas does not show elemental <br /> occurrences or breeding in anywhere in Colorado for the Whooping <br /> Crane.No designated critical habitat for the Whooping Crane exists in the <br /> Project area. <br /> Fishes <br /> Pallid Sturgeon3 Scaphirhynchus FE Not present in Colorado.This species is documented to occur <br /> albus downstream in the Platte River in Nebraska.The Project does not <br /> anticipate causing any water depletions to the South Platte River.Pallid <br /> sturgeon are a bottom-oriented,large river obligate fish inhabiting the <br /> systems of the Missouri and Mississippi rivers.No critical habitat has <br /> been designated for the pallid sturgeon in the Project area. <br /> Mammals <br /> Preble's Meadow Zapus hudsonius FT Unlikely to occur.Project is located in the USFWS Preble's Meadow <br /> Jumping Mouse preblei Jumping Mouse Block Clearance Zone 4 <br /> Plants <br /> Colorado Butterfly Plants Oenothera FT Unlikely to occur.The Colorado butterfly plant(COBP)is known to occur <br /> coloradensis spp. in Adams County;however,COBP was not observed in the Project area <br /> coloradensis during the site visit and potential COBP habitat does not exist in the <br /> Project area.COBP is an early successional plant(although probably not <br /> a pioneer)adapted to use sub-irrigated alluvial stream channel sites and <br /> floodplains surrounded by mixed grass prairie that are periodically <br /> disturbed.COBP occurs at elevations of 5,000-6,400 feet,which is <br /> slightly higher than the elevation range of the Project area.The habitat at <br /> the South Platte River Creek has dense vegetation cover with at least <br /> partial canopy coverage by shrubs and trees,which is not suitable habitat <br /> for COBP.No designated critical habitat for COBP exists in the Project <br /> area.The Project is not expected to impact the South Platte River or <br /> associated wetlands. <br /> Tucson South Sand and Gravel Mine—Brighton,Colorado 9 <br />