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Message: <blockquote data-quote="mjh73" data-source="post: 1935654" data-attributes="member: 82187">That is not the major reason for the decline per se, but it is believed to be the current major reason why the decline has not been able to be arrested despite the best efforts of the recovery team and others for over 25 years.The original decline from however many there were when the europeans first arrived is suspected to have been caused by the usual suspects - development and / or degradation of habitat on both the breeding and non-breeding grounds, as well as the migratory routes, and competition from introduced species (for food and nest sites), and a whole load of other factors that seem minor on the face of it but contribute to making life that little bit harder for the OBP..... the 'extinction vortex' effect in action again</blockquote>