Great Bustard - (Otis tarda) - Population vast plains and deserts and steppes with shrubs, but also on the grassy meadows. Among the heaviest flying birds. Whole year is present in flocks. Males have territories, but they have a hierarchy between them. It is characterized by a marked sexual dimorphism. Extraordinary show the flow of males, in which dancing with outspread wings. Feed on plant food and insects. Sometimes even small rodents, chicks. Nest between April and August. The nest is on the floor. The eggs sit only female. Chicks hatch after 23-24 days. These include critically endangered species.

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