Gadwall (Mareca strepera) is a species in the order Anseriformes, family Anatidae. Nidatlas records 180,824 occurrences of this species across the Iberian Peninsula — Portugal, Spain, and the Azores, Madeira, the Canary Islands and the Balearics — ranking it #75 of 584 species by total records. This page shows its seasonal pattern, geographic distribution down to a 10km grid cell, and position in the bird tree of life.

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