The silly part of this experiment was they felt the need to have horses respond to symbols because hey, that makes them seem.smarter in human terms.
When I saw this report last year it did however inspire me to start asking my mare if she wanted her blanket on
She already plays fetch pretty obsessively
I hung the blanket at the back of the stall and said go get your blanket! And when she dragged it over to me I didn’t click and treat, just put it on her as the reward.
She did this a couple of times during our big cold snap. I didn’t do it every day as it wouldn’t work if she was already eating.
Then the weather changed to above 10 C/ 50 F and rain. I left her blanket off for the day. When I got to the stall I saw that she had evidently just dumped the blanket outside out of sight. It was only slightly wet so clearly she did this after she saw me drive up. I said go get your blanket! And she looked at me with big eyes saying but there is no blanket, silly human. Do you see a blanket? Of course not. So I rescued the blanket and hung it up to dry.
When the weather went cold again she fetched her blanket but when it warmed up she just looked blank again when I asked.
So if she wouldn’t bring me the blanket I didn’t put it on.
Now she is unclipped in a stall with paddock runout and really a blanket at all is optional, but she does get a cozy soft look on her face when her blanket goes on when it’s really cold. If it’s cold enough she doesn’t even act
girthy for the belly bands!
Actually the other inspiration for this was the horrible sleety day I left her blanket off but hung in her stall, which I didn’t usually do, and when I came back she stood beside it, looked at me, looked at the blanket, looked at me, but wouldn’t move. And just started grinning with delight when it went back on.
I think it makes her happy to know that humans can be trained to do simple tricks and to understand the most obvious and basic bits of horse language.