RESULTS AND DISCUSSION 

 Species List Update 



During the monitoring period, 70 species of vertebrates were observed or 

 trapped--l species of amphibian, 1 reptile, 55 birds, and 13 mammals. Also 

 during the monitoring period, 13 new species (1 amphibian, 12 birds) were 

 found, bringing the total number of species observed since the studies began 

 in 1978 to 124 (1 amphibian, 1 reptile, 84 birds, and 28 mammals). Data on 

 those new species are summarized in table 2. The types of data included and 

 the abbreviations used are as described in the baseline study (DNRC 1979, pp. 

 23-29). 



Project Area Wildlife Census 



Results of the wildlife censuses conducted in the project area during the 

 study period are summarized in table 3. 



Seasonal variation in numbers of species encountered during project area 

 censuses each month is shown in figure 2. Study data show that the number of 

 water-related bird species (waterfowl, shorebirds, herons, gulls, ospreys , 

 bald eagles, dippers, belted kingfishers) remains relatively constant year- 

 round, with a slight increase during the breeding season. The number of 

 species of other birds is relatively high throughout the year, but increases 

 considerably during the breeding season. 



Census results for the dipper are shown in figure 3, and variations in 

 average monthly abundance of the most common waterfowl species, as determined 

 by the censuses, is portrayed in figure 4. 



