Replication Data for: Fig 5.5, Left side, BTPDs, territorial calls vs ward size, 17 Oct 2025

The number above each bar indicates the number of days of listening for 15-45 minutes at a ward. I assumed that data from different days from the same ward were independent.

These data were collected in late July 1975, when juveniles had emerged from their natal nursery-burrows in May. Estimated ward size includes adults, yearlings, and JUVENILES, and are the maximal counts I ever observed I made only one count of territorial calls per day at each ward. Ranks and sizes of colonies and wards for most of the other graphs for my book do NOT include juveniles.