DistributionRead full entry
Range DescriptionCollocalia sawtelli is restricted to Atiu, Cook Islands, although there is a possible early historic record from Mitiaro (Steadman 1989) and an unconfirmed report of swiftlet bones found on Mangaia (J. Pilgrim in litt. 2002). When it was collected in 1973 from the Anatakitaki Cave there were c.60 nests and the local inhabitants reported that there were a few smaller colonies elsewhere on the island (Holyoak 1974). In 1987-1988, a detailed survey recorded 190 active nests in two caves (Tarburton 1990). In 1994 and 1995, further surveys were conducted and, although the numbers of active nests in each cave varied from year to year, the totals were stable at 172 and 175 (McCormack 1997).