What is going on with this species along its northern fringe of its
breeding range? Is this boundary expanding northward? Data from the
Wisconsin Breeding Bird Atlas seem to suggest this:
http://www.uwgb.edu/birds/wbba/species/maps/HOWA.htm
Data from the Eastern Region of the BBS indicate that it is
increasing slowly but steadily since 1966:
http://www.mbr-pwrc.usgs.gov/cgi-bin/plotpgm0.pl?/sula/jrs/bbs03/htmin
d/06840.ea
I think its song to be loud, penetrating, and very melodious. Here
is how Audubon described the song of the Hooded Warbler "It is rather
loud, lively, yet mellow, and consists of three notes, resembling the
syllables weet, weet, weetee, a marked emphasis being laid on the
last. Although extremely loquacious during the early part of spring,
it becomes almost silent the moment it has a brood."
So, did I hear one today on the Bergland, MI BBS route? Please see
my write up for this route for more discussion.