Nest cavity competition may threaten an endangered Tasmanian songbird

The Forty-spotted Pardalote (Pardalotus quadragintus), an endangered Tasmanian songbird, has been experiencing unexplained declines in its remaining habitat, and a new study in The Condor: Ornithological Applications describes how competition with a related species for nest cavities may be putting extra pressure on these vulnerable birds. Amanda Edworthy of Australian National University spent two years monitoring nests of Forty-spotted Pardalotes and Striated Pardalotes at three sites around Ta