Wigeon Anas penelope is a dabbling duck very little studied in North Africa. Its ecology, its spatio-temporal distribution, and its dynamics are still poorly documented throughout this region of the Mediterranean basin.

In this work we studied the ecology of this species in hydrosystems of the North-East of Algeria, or we noted that Garaet Hadj-Tahar hosted during the wintering season (2011/2012) more than 550 individuals. This species occupies the deepest sites of the stady site. We also noted that sleeping (35%) and swimming (38 %) are the dominant activities, feeding (6%) and preening (20 %) are also observed with low rates and flying is very low (1%).