"The devastating drought in Texas is raising worries that the parched conditions could harm the only self-sustaining flock of whooping cranes left in the wild.
The lack of rain has made estuaries and marshlands too salty for blue crabs to thrive and destroyed a usually plentiful supply of wolfberries, two foods that the cranes usually devour during their annual migration to the Texas Gulf Coast. The high-protein diet is supposed to sustain North America's tallest bird through the winter and prepare it for the nesting season in Canada.