can you please help me on this error?

public Birds ( \{\} public string eat() 1 return "worms"; 3 public abstract double fly(): b public class Sparrow extends Birds t public Sparrow() I public string eat() \& return "seeds"; 3 public double f1y() I return 4.13; 3 \} public class Main public static void main(String[ ]args) f Sparrow smew Sparrow(); line 27: error: non-static variable this cannot be referenced from a static context System.out.println("Sparrow Eat:"+s.eat()); System.out.println("Sparrow F1y: "+8.f1y())