Winter and house wrens further distinguished by differences in song, call ... most birds in North America migratory. Major spring movement follows that of the winter wren; major fall movement ...

Carolina wrens have slightly more reddish plumage than northern house wrens ... of various phrasing. The bird has been called “mocking wren” because it sometimes sounds like a catbird ...

In many places in the West, the Bewick’s wren produces the local “mystery song.” Call: variable ... buzzier. Songs of birds in the interior subspecies-group (ero­moph­ilus group) are ...