The first results of the project have been finally published, in scientific journal Ecography.
http://onlinelibrary.wiley.com/doi/10.1111/ecog.02779/abstract
It was already captured by media both in the UK (https://www.theguardian.com/environment/2017/jan/12/lost-british-birdsong-discovered-in-new-zealand-birds) and New Zealand (http://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=11782717)
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