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~- __~?cn "' -~a~ ii: :aid and uolden c 1 - age ..es :s _ _ Analysis: There are no bald eagle nests, inere.is one known "- golden ea~1e nest in T. 135., R. 90Y., Sec. 31, NW1/4 NW1/4, 6th P.M. This nest is on private lands; however, activities on federal lands may have a negative effect on the eagle nest. At this time the status of this nest is unknown. The nest location was discovered in 1976 by consultants working for ARCA.. There has not been any • follow-up since that time to determine if the nest has been active. Pending final approval from the U.S. Fish and Wildlife Service. s 1/4-vile buffer zone around this nest will be considered unsuitable.- • This buffer zone will also apply ix arty eagle nests discovered in the future. Exceptton: The buffer zone could be considered suitable for' underground mining with the folloring stipulations. Surface -_ ~ facilities. occupancy. surface disturbance, industrial fires, and subsidence will rat be permitted in the eagle nest buffer zone. Some surface activities mey be permissible in the buffer zone at times other than the breeding/rearing season (March 1 to July 1) or if the nest is inactive. This will require further study on a sitrspeeiflc basis. Arty future activity in, or adjacent ta. thus buffer nines must bt approved by the U.S. Fish acrd M1ldlife Service and Bureau of Land Management. ' Criterion Number 12: Bald aed Golden Eag1a Roost Concentration Areas .._ ._. _. __.. Analysis: There are no known roost or concentration areas in the 1 ease era. Criterion Number 13: Falcon C11fi Nesting Sites _ •Analysis: There are no known nesting sites. although prairie falcotrs have been documented on the lease area and peregrine falcons could oewr on the site. Criterion number 14: Migratory 81rds Analysis: The Cooper's Hark occurs and oasts on the lease tract. A nest has been located on the lease tract. The nest is located within the area proposed. for surface facilities (T. 133.. R. 9011., See. 16, SW'1/4 SE1/4 Nif1/4, 5th P.M.). Activities in the drnlroge, wham the nest is lou fed. from approximately the 6760 foot level up to the ridge top and 1/8th mile on either side of the drainage botinaa (see map) are unsuitable. Nearly half of the spades of high federal interest depend upon riparian habitat for at least a portion of their life cycle. A11 riparian zonal plus a 1/8-utla buffer strip on etch side of xhe perennial and ephemeral streams should be classed as unsuitable.