grasshopper | | 1 | 1 | 12| 6| 5 | 39| 22| 24| 12| 18| 3 | 6 ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- ant | | | | | | | 4| | | | | | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- bug | | | | | | | | | | | | | (hemipteran) | | | | 1| | | | | | | | | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- misc. insect | | | | | | | 3| 1| | | | | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- crayfish | 1 | 1 | 3 | | 1| 1 | 3| 2| 2| 2| | | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- snail | | | | | 1| | 7| 4| 1| 4| 1| | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- fish | | | | 2| | 1 | 28| 14| 7| 7| 2| | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- bird | | | 1 | | | | | | | | | | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- eggshell | | | | 1| 1| 2 | 10| 5| 8| 1| 1| 1 | ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- mammal | 2 | 2 | | | 4| 2 | 8| 3| 5| 5| 8| 1 | 5 ---------------+---+---+---+---+---+---+---+---+---+---+---+---+--------------- TABLE 3. AVERAGE, MAXIMUM, AND MINIMUM PERCENTAGES OF FOOD RESIDUES IN PELLETS COLLECTED AT WINTERING CROW ROOSTS IN THE WESTERN PART OF THE STUDY AREA--1952-53-54.