At the end of the week data from all plots will be transferred to the 

 summary sheets, also in phylogenetic order, and the average minimum number 

 present and number seen per hour will be calculated. Each month, then, 

 three field data sheets and three summary sheets will be preapred. 



April, June, and August data will be used to determine breeding bird 

 territories according to the criteria listed by Robbins (1970) . ' 



Species seen or heard outside the census boundary will be listed on the 

 field sheet, but not included in the census results. All observations of 

 waterfowl, raptors, and large mammals made during census runs will be re- 

 corded on standard waterfowl or wildlife data sheets as well. Details of 

 any nests located will be recorded on nest record cards, and locations of 

 nests will be marked on a separate set of maps each year. 



143 



