 The rally is an open, international, and non-professional attempt to tally as many bird species as possible.Bird counts assist in identifying environmental threats to the well-being of birds or, conversely, in assessing the outcomes of environmental management initiatives intended to ensure the survival of at-risk species or encourage the breeding of species for aesthetic or ecological reasons.The delta undergoes annual flooding, but the greatest threats to its integrity are posed by pollution, agriculture, the fishing industry, and tourism.