December 1992 VOLUME 16 - N. 2 AVOCETTA VOLUME 16 - N. 2 December 1992 Read Article Online Download Pdf AVOCETTA - VOLUME 16 - N. 2 December 1992 The nesting by the Herring Gull (Larus argentatus) in the Towns and Villages of Bulgaria NANKINOV D.N. 29 74 Read Article Download Abstract: