using System;
using System.Collections.Generic;

namespace question
{
   public class Dog
   {
     public string Breed { get; set; }

     public string Name { get; set; }
   }

   public class Dogs : List<Dog>
   {
      public Dogs(params Dog[] dogs) : base (dogs)
      {

      } 
   }

   public class DoSomething
   {
      public static void HereWeGo()
      {
         Dog _brutus = new Dog();
         Dog _rex = new Dog();

         _brutus.Breed = "Basset Hound";
         _brutus.Name = "Brutus"; 
         _rex.Breed = "Basset Hound";
         _rex.Name = "Rex";

         Dogs _allDogs = new Dogs(_brutus, _rex);
         // EDITED to remove superfluous lines        
         Dogs _allFoundDogs = new Dogs(_allDogs.FindAll(p => p.Breed == "Basset Hound").ToArray()); 
         foreach(Dog dog in _allFoundDogs) Console.WriteLine(dog.Name);
      }
    
      static void Main()
      {
         HereWeGo();
         Console.ReadKey();
      }
  }
}