A study, just published, shows the progressive eastward adoption of a doublet-ending song among white-throated sparrows, replacing the traditional triplet ending. The researchers found that birds from different dialect groups overwinter together and suggest song tutoring during this time is a facilitating factor ( https://www.cell.com/current-biology/pdf/S0960-9822(20)30771-5.pdf?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982220307715%3Fshowall%3Dtrue ).
Is there any information on how white-throated sparrows in Colorado fit into this trend? Willem van Vliet-- Boulder County -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/ca96fe83-5ff0-4bfd-90db-a70decb4e6a2o%40googlegroups.com.
