Fall in horseshoe crabs hits birds

This story is about horseshoe crabs that are decreasing ,because people want their blue blood.  Their are less eggs now that the crabs have decreased.  These types of birds eat the eggs, and since the crab population is going down the birds have no eggs to eat.  The shorebird that has had the fastest drop is the Red Knot.  Thee birds have no food on shore.  The need help.