So, the first time I rode my horse outside this year was last Saturday, and she was so good. Have ridden her a few times since then, and she was also angelic. Then today...well, she was alright starting off, a little antsy but that's understandable since I haven't ridden for a few days. She was totally fine with my dad welding, and the neighbour's dog barking, and cars driving by on the road and all that, but then, later on she caught sight of the rest of the horses in the field eating grain, and she lost it. TOTALLY zoned out, and ignored me, and just stared intently at them, and whined-not whinnied, but whined-when I turned her to go the opposite way. Nothing I did could get her attention-circles, serpentines, halts-if anything the circles made her try to speed up. If I didn't have so much respect on the ground from her I firmly believe she would've taken off, bucking with me, but she held it together-barely. Finally, fed up with her ignorance, I got off and took control. I made her back up, turn, move side to side etc, then led her to the opposite site of the barn and mounted up again, hoping that with the others out of sight she'd forget about them. But no, she didn't-just continued not listening to me. She'd tried to trot, but I wouldn't let her, and after I got in a quiet serpentine pattern I threw in the towel (with riding...I did make her work afterwards).
How can I get her attention when she doesn't zone in doing shapes and patterns? Understand I'm not a really experienced rider, but I'm not totally green either. On the ground she's perfect-respectful, quiet, and no, she's not barn or buddy sour. She just knows that I'm not as strict or experienced in the saddle as I am on the ground. I-obviously-want to change that, but the only way I can get better at riding is to ride more often.
So...just in case something like that happens again, what else can I do to get her attention?