Table 2. Summary statistics of explanatory variables and other selected variables for American Coot (Fulica Americana) nests at Grays Lake, Idaho, 19972000. Dates given are Julian dates.

Variable N Mean Median Minimum Maximum
IAGE 1303 19.5 20.5 4.5 30.0
IDATE 1303 166.0 166.5 133.5 195.0
WDEPTH 1303 32.3 31.0 0 90.0
Initiation date 892 147.3 147.0 121.0 177.0
Interval length 1303 10.3 11.0 1.0 27.0

For initiation date, sample size is the number of nests; for all other variables, sample size is the number of visitation intervals.