Lately Tijuana, the horse I ride every weekday during lunch hour, has been randomly grumpy. Sometimes we have no problem tacking up (western, either with a halter/lead or with the actual bridle), but when we get on, she tries to turn around and bite my/Susie's legs (Susie and I take turns riding Tijuana and Jenny). I know Tijuana loves her personal space (She's quick to pin back her ears if Jenny is too close), but why does this only happen on random days? Note that Jenny seems fine all the time, so its not that the tacking-up is done improperly or anything.
Today, we decided not to ride because of the recent rain. The grass/dirt is still too slippery and wet to be safe on. So we were just wandering around the yard, and Susie's younger siblings were following us. Susie and I walked into the pasture to pet the horses a bit, and at first Tijuana seemed fine, I was massaging her neck and Susie was gently removing mud from her back. A few minutes later, Susie's little sisters show up, and when Aggie (age 7) tried to stroke her face, she pinned back her ears threateningly. Note that me and Susie were still touching her. Then Lena (age 5) tried to touch her, and she did it again. I laughed and was like, "Gee, Tijuana doesn't like kids today!", and as if on cue, she turned around to try and nip/bite me! What is wrong with her?
Both horses have access to the walk-in shelter, 2 acres of land, lots of water, and occasional treats. There have been no recent changes to anything. Why is she suddenly like this?
The hardest part about riding is the ground. -Dr. DoLittle 3
The only difference between cowgirls and angels is that angels can't ride that good. -Cowgirls & Angels