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Message: <blockquote data-quote="pbjosh" data-source="post: 3453760" data-attributes="member: 117939">Thank you for the summary. I hadn't personally been aware of / noticed variation in spillmanni or in the Myiornis. I will admit that without studying them enough and without spending enough time in each species range I have the tendency to learn the local suite of Tapaculos in each area but I frequently do not notice how the voices vary over the range as I move around between areas. latrans and atratus are the only ones where I have personally noticed strong distinctions without having previously read anything.FWIW, on rodriguezi, lacking recordings from the nominate "upper Magdalena" birds I used a recording of yariguiorum and had instant response at Finca Meremberg and could not, at least by ear, tell the difference in voice.</blockquote>