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2019 Biological Resources Inventory Report <br /> Table 4: <br /> State Listed Species and Their Likelihood of Occurrence Within the Project Area <br /> Taxonomic Common State <br /> Group Name Scientific Name Status Likelihood of Occurrence within the Project Area' <br /> Amphibians2 Boreal Toad Bufo boreas SE Unlikely to occur.Habitat includes mountain lakes,ponds, <br /> meadows,and wetlands in subalpine forests,which do not occur in <br /> the Project area.Adults often feed in meadows and forest openings <br /> near water but sometimes in drier forest habitats.This species <br /> habitat is exclusively in the mountains of Colorado to the west of <br /> the Project area and typically above 8,500 feet above mean sea <br /> level. <br /> Birds3 Burrowing Owl Athene cunicularia ST Moderate potential to occur in Project area,Burrowing Owls are <br /> known to utilize prairie dog colonies for habitat.Four potential <br /> prairie dog colonies were documented within the Project area <br /> (Figure 1). <br /> Least Tern Sterna antillarum SE Unlikely to occur.Breeds in the southern and eastern portion of the <br /> state,generally in the La Junta—Lamar area outside the Project <br /> area.Habitat consists of sandy hills and rooftops large rivers in the <br /> great plains and the Atlantic coast. <br /> Lesser Prairie Tympanuchus ST Unlikely to occur.Occupies the grasslands of Texas,Oklahoma, <br /> Chicken pallidicintus New Mexico,Kansas,and southeastern Colorado,outside the <br /> Project area. <br /> Mexican Strix occidentalis ST Unlikely to occur.Habitat consists of mature mixed-conifer,pine- <br /> Spotted Owl lucida oak,and riparian forest in canyon habitat.These habitat <br /> components are not present in the Project area. <br /> Plains Sharp- Tympanuchus SE Unlikely to occur.Occurs in native grassland habitats with shrub <br /> Tailed Grouse phasianellus jamesii cover or grain fields that do not occur in or around the Project area. <br /> Piping Plover Charadnus melodus ST Unlikely to occur.The study area is outside typical breeding and <br /> circumcinctus wintering distribution.Occurs in the Platte River watershed <br /> downstream in Nebraska. <br /> Southwestern Empidonax traillii SE Unlikely to occur.The tudy area is outside typical distribution. <br /> Willow extimus Breeding distribution in Colorado is limited to the southwestern <br /> Flycatcher portion of the state in riparian forests. <br /> Whooping Grus americans SE Unlikely to occur.The study area is outside typical distribution. <br /> Crane Occurs in the Platte River watershed downstream in Nebraska. <br /> Arkansas Etheostoma Cragini ST Unlikely to occur.The range of the species occurs within the <br /> Darter Arkansas River drainage,outside of the Project area. <br /> Fish4 5 Bonytail Gila elegans SE Unlikely to occur.Does not occur east of the Continental Divide. <br /> Brassy Hybognathus ST Moderate potential to occur in cool intermittent and perennial <br /> Minnow hankinsoni streams within the Project.This species occurs in in stream <br /> channels,pools,and small streams in the Lower South Platte River <br /> Basin.Its distribution is notoriously unpredictable but can be <br /> abundant where found. <br /> Colorado Ptychocheilus lucius ST Unlikely to occur.Does not occur east of the Continental Divide. <br /> Pikeminnow <br /> Greenback Oncorhynchus clarki ST Unlikely to occur.Prefers clear,cold gravely headwater streams in <br /> Cutthroat Trout stomias mountainous regions,which do not exist within the Project area. <br /> Humpback Gila cypha ST Unlikely to occur.Does not occur east of the Continental Divide. <br /> Chub <br /> Tucson South Sand and Gravel Mine—Brighton, Colorado 11 <br />