Abstract
The presented study started to monitor the breeding and populations dynamics of waterbirds at Al-Mallaha wetland, Libya, in March 2014. Mallaha is a salt marsh, fed by a canal from the sea all year-round and by rainfall during winter. The area is classified as a site of national importance for Black-winged Stilt, Great Cormorant, Dunlin, Greater Flamingo, Shoveler and Teal. Summing up the peak counts of all 47 species observed during the study period results in a figure of 1966 individuals (not a total value as not accounting for turnover in individuals). A peak in numbers occurred during the last week of April 2014. The study also reported nine important waterbirds species that are mentioned in the Annex II, RAC/SPA. Moreover, this study observed a total of 41 and 32 nests with different clutch sizes for Black-winged Stilt and Little Tern, respectively. Breeding success of both species was significantly affected by predation. Key words: breeding, population dynamic, waterbirds, Al-Mallaha, Libya