Abstract

We document here the effects of an unusual temperature event related to a site in South East NSW that is the subject of a longitudinal study of the breeding biology of woodland birds. In the three breeding seasons before the 2009-10 season we recorded only one temperature above 40°C in November (40.9), and one in December (42.9). All other records above 40°C occurred in January when there were relatively few active nests. On November 20 2009 a temperature of 46.2°C was recorded, when there were 22 active nests. We are suggesting that at least six, and perhaps seven of these nests failed as a result of this event.

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