Puzzles of the ornithological atlas: downy young or recently fledged?

URN:NBN:SI:doc-85CW0D7L1987documents/doc/8/URN_NBN_SI_doc-85CW0D7L_001.pdfdocuments/doc/8/URN_NBN_SI_doc-85CW0D7L_001.txt8 (1987), 31-32 ; str. 21-22article0351-28514061700URN:NBN:SI:doc-85CW0D7LslvDruštvo za opazovanje in proučevanje ptic SlovenijeAcrocephalusInCbiologijaornitologijaPuzzles of the ornithological atlas: downy young or recently fledged?Vprašanja ornitološkega atlasa: begavec ali poletenec?