Just to note, have been told this is not a study limited to UK breeders, but is open to international participants (Dr Rusbridge titles it an international study for her blog post . So anyone interested in participating internationally should contact researchers. So far there is the ability to do the measurements in the UK (so irish breeders could travel); Australia and at least some of Europe. There would be hope to get someone also in North America I would suspect.

http://clarerusbridge-news.blogspot....archer-at.html