2 or 3 song types
one type repeated up to 40 times
song consists of about 12 elements out of 25 recombined into different songs (Kroodsma 1980)
Winter Wren Song
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wiwr2 Pilot Creek Access 122120 wiwr3 Pilot Creek Access 122120 wiwr Tanglewood Park 010223 wiwr2 Tanglewood Park 010223