So um... Seventh inning joke time?
(Reaches into old camp story joke bag...)
Apparently Clydesdales suffer horribly from birds nesting in their hair.
And the stable boys didn't know how to help 'em...
So someone (presumably Chief?) suggested applying yeast.
It did the trick. So they asked how he knew...
The response:
"Oh, Yeast is Yeast and Nest is Nest, and Never the Mane shall Tweet."