Both Singer ( Xbox x Funny) and Aria (Hunter x Judy) are owned and trained by Rich and Jan Godfrey.
Jan is working Singer (Alta-Tollhaus Just a Singer), she had Singer move the sheep through a chute that was only wide enough for one sheep to go through at a time:
Rich doing morning training with Aria (Alta-Tollhaus Yes Just a Singer 2). He is directing Aria and doing the video at the same time. Rich teaches his dogs while herding the sit command means stop.
Here Aria is doing flank drills. These sheep want to escape. She should move in the direction given and keep the sheep from escaping. Toward the end she got something in her ear. You can see her holding one ear down. No problem, just a shake of the head and back to work.