Ошибка: An object reference is required for the nonstatic field, method or property - C#

using System;
using System.Collections.Generic;
using System.Text;
 
namespace ConsoleApplication5
{
    class Butterfly
    {
        public string wings;
         
        public void Fly()
        {
                wings = Console.ReadLine();
                for (int i = 1; i < 101; i++)
                {
                   Console.Write(i + " " + wings + " ");
                }
            
        }
        static void Main(string[] args)
        {
            Butterfly mahaon = new Butterfly();
            do
            {
                mahaon.Fly();
            } while (wings != "exit");
                System.Console.ReadLine();
            
                  }
    }
}