Her horns are too heavy for the cow.
More Ethiopian Proverbs:
A fool looks for dung where the cow never grazed.Ethiopian
The mouse is silent while laboring, but when the baby is conceived, she cries.
Ethiopian
Better an egg this year than a chicken next year.
Ethiopian
He who lives with an ass, sounds like an ass.
Ethiopian
No better witnesses than your own eyes.
Ethiopian
A bleating sheep loses a bite.
Ethiopian