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APA Citation
Perkins, A. J., Douse, A., Morgan, G., Cooper, A., & Bolton, M. (2017). using dual-sex calls improves the playback census method for a nocturnal burrow-nesting seabird, the Manx Shearwater Puffinus puffinus. Bird study, 64(2), 146–158. http://access.bl.uk/ark:/81055/vdc_100046343953.0x00003a