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<br />878 birds and fish can be included. Habitat used by these birds should not be adversely affected by the <br />879 proposed plan. <br /> <br />880 Bluehead sucker <br /> <br />881 Bluehead suckers tend to occur more frequently in the upper reaches of the San Juan River and occur <br />882 both upstream and downstream of Farmington. Propst (1999) reported them as common in the San <br />883 Juan River system. Ryden (2000) indicated that during the period of testing recommended flows, there <br />884 was an overall improvement for this species in the San Juan. This may be related to maintenance of <br />885 cobble areas which provide feeding habitat. Based on results of the test flows, it is anticipated that this <br />886 species will benefit from the proposed action. The exception to this may be in areas between <br />887 Farmington and Navajo Dam that will have significant flow reductions in summer and fal! months, <br />888 reducing water quality and perhaps reducing the quality of cobble feeding areas. <br /> <br />889 Mottled sculoin <br /> <br />890 Ryden (2000) reported collections of mottled sculpin between River Miles 155 and 178 in the San Juan <br />89\ River. Mi1ler and Rees (2000) reports the species as common to abundant in the Animas River and <br />892 tributaries upstream from Navajo Reservoir. They were also common in the upper LaPlata River. The <br />893 species is less common in New Mexico and Propst (1999) reported the species may warrant state <br />894 protection. More natural flows and maintenance of channel conditions may benefit this species under <br />895 the proposed alternative. <br /> <br />896 Northern leooard frOg <br /> <br />897 This frog is associated with wetlands and waterways along the San Juan River. Reduced summer <br />898 flows between Navajo Dam and Farmington under the proposed plan may adversely affect its habitat, <br />899 particularly in the extensive wetlands just downstream from Navajo Dam. Water supply to these <br />900 wetlands will be reduced when summer releases from Navajo Dam are reduced from 500 to 250 cfs. <br /> <br />901 Bighorn sheeo <br /> <br />902 Desert bighorn sheep are often associated with river canyons, including the lower reaches of the San <br />903 Juan River. The sheep can utilize rivers for drinking water and some use of riparian areas can occur. <br />904 There is no indication that this species would be affected by river flow changes under the proposed <br />905 plan. <br /> <br />30 <br /> <br />00668 <br />