Questions about clipping wings

[Hishigata]

Thanks for the helpful post. I clipped the primary feathers on one of my girls today who has been escaping into a neighbor's yard. Her sister was killed by the neighbor's dog this afternoon so it seemed best to prevent any more escapes. I have a 6 foot tall fence but the girls could still hop over. Even with both wings clipped, she can still get about 4-5 feet off the ground and has been slamming herself against the fence trying to escape. Not sure why she is so motivated. I may need to clip her secondary flight feathers as well...