If they get more this summer and free range them again you'll probably want to fence in your garden, otherwise they will destroy it. Chickens love nothing more than tender little seedlings and scratching up loose soil.I kind of thought this also as I watched it happen, with sorrow because their chickens coming over to visit me as I worked in my garden was the final straw that determined me to stop waiting for the perfect time and go forward with my flock. I'm hoping it will become so after this experience!
It's very exciting to get your first flock, and then those first eggs, enjoy!