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
I don't know about white-throated sparrows, but I remember that
Stanford, or Cal Tech (?) was doing experiments in the 1980s, on the song
sharing, changing, of white-crowned sparrows.
Very interesting.
Jan Waddington - Jeffco
On Sat, Jul 4, 2020 at 6:59 PM Willem van Vliet wrote:
>
> A stu
