Around the yard and in the neighborhood, without distractions, dogs usually do a good job of obeying come or here.
On a running pheasant, a different story.
Come, here, and/or the whistle can save a dog's life if pursuing a bird that decides to run over a nearby highway!
E-collars are a very important tool, especially when the dog decides to not hear. My dog wears the collar often and gets the tune when not listening to me and a little jolt thereafter when he continues to be a hard head and not respond. Males do that!
I've had the collar on him since 5 month's of age - it works well!
Just my experience working with an aggressive male.