Option A is correct. While a number of elements have contributed to the modern reputation of Whooping Cranes, the essential reasons are habitat loss and past rampant, unregulated hunting for their meat and feathers.
Because some of their habitat is federally protected, the land is managed to keep the animals. The biggest threats to whooping cranes are man-made: power lines, illegal hunting, and habitat loss.
one abiotic aspect is low meals provide or low temperatures or air pollution or natural events in the habitat or low water supply. These are density impartial elements that can restriction or harm growth of the population.
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