Census of Yaak Falls 



Water and shoreline habitats of Yaak Falls and c. 100 m (328 ft) of M 

 river upstream and downstream will be censused for vertebrates in January, " 

 April, June, and August (one visit each month) in an effort to determine 

 its suitability as a possible future control study area or as a compensation 

 area. 



Species List Updated 



The species lists presented in this report as Table 2 and 3 will be up- 

 dated each year; emphasis will be placed on refining data on habitat preferences, 

 distribution, and breeding status, and upon recording new species (particularly 

 migrants) . 



Habitat Description 



Six vegetation plots 0.04 ha (0.1 acre) in size will be permanently staked 

 and sampled in May or June of 1980 and again the year prior to project construction 

 using the methods of James and Shugart (1970) in each of the following three 

 riparian habitats: riparian cottonwood, cottonwood-conifers, and birch-alder. 

 Foliage height diversity measurements will be made at each plot. 



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