Platte River Ecology Study

Tables

Table 2. Estimates of peak numbers of sandhill cranes on spring staging areas in the Platte and North Platte River Valleys, Nebraska, during 1979 and 1980.


                     
                 _________________Staging  Area_____________
                 
Date               Kearney-        Overton-     Sutherland-     Total
                 Grand Island     Elm Creek     North Platte


14 March 1979     175,473 +/-     33,163 +/-     51,784 +/-    260,420 +/- 
                    66,527         22,871         14,748        71,933 

24 March 1979     231,126 +/-     22,717 +/-     52,632 +/-    306,475 +/-
                    67,820          8,288         11,702        69,319


20 March 1980     179,702 +/-     32,828 +/-     58,714 +/-    271,244 +/-
                    44,218         12,163         18,877        49,594

24 March 1980     228,140 +/-     74,106 +/-     51,659 +/-    353,905 +/-
                    54,092         34,399         70,926        78,772

 4 April 1980     368,036 +/-     57,156 +/-       ----*       443,219 +/-
                    37,151         36,589                       67,861**

*26 March 1980 ground count was 93,651

**1980 maximum estimate was 541,282 if 26 March ground count is used for
Sutherland-North Platte staging area.