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Zur Fortpflanzungsgeschichte der gesammten Vgel Plate XVII . Zr yfj ' 'V r' ff Ig fy ' yy '' 'i 'eyvy ii ity iM J' ety Hh yy yyiya ifl' yyiyyu yy g' Yy yntyy ay 'a ie jS yyyyy yyyycy yyzay Ay yiy yyiy yy ly yy yyyy yf yyyyyy cyyyyyyfy ytr y'yy' ywj ayyyy yyiyyya yi yy ey Plate XVII Illustration biodiversitylibrary