[Tunis Afrique Presse] Tunis/Tunisia -- The number of waterbirds wintering in Tunisia has reached an annual average of about 364,497 birds, with a slight increase for some species and a decline for others, and a peak recorded in 2014 with 539,303 birds counted, according to the census of waterbirds in the period 2009/2018 carried-out by the Association « Les Amis des Oiseaux » (AAO).