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Article History

Received: 7 January 2019

Accepted: 20 March 2019

First Online: 8 April 2019

Ethics approval and consent to participate

: Samples from wild birds from Australia were collected under approval of Deakin University Animal Ethics Committee (permits A113-2010 and B37-2013). Banding in Australia was performed under an Australian Bird Banding Scheme permit (banding authority numbers 2915 and 2703). Research permits were approved by Department of Environment, Land, Water and Planning Victoria (permits 10006663 and 10005726), Department of Environment, Water and Natural Resources South Australia (research permits M25919-1,2,3,4,5) and Department of Primary Industries, Parks, Water and Environment Tasmania (permit FA 13032). Approvals to conduct sampling in Antarctica were provided by the Universidad de Concepción, Facultad de Ciencias Veterinarias, Chillán, Chile (application CBE-48-2013), and the Instituto Antártico Chileno, Chile (application 654).

: The authors declare that they have no competing interests.

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