two Muir Woods uploads for identification

["Robin Carter" graykingbird]

Dan's second recording is of a Winter Wren, and not of a Dark-eyed Junco.
Winter Wrens are common in winter in Congaree National Park and I often hear
just this sort of call. The double note is distinctive. Also a Winter Wren
might be jumping around on the trunk of a large tree (though they are much
more likely to skulking on the forest floor). A junco would hardly ever be
found on a tree trunk. Look for juncos on the forest floor or on small
branches.

Robin Carter
Columbia, SC USA