2, the grass is exhausted, and the sheep and horses are moved.
All the above are from the Sao narrative poem "Eighteen Beats of Hu Jia", originally published in Song and Guo Maoqian's Poems of Yuefu (Volume 59).
3, the sky is grey, the wild is vast, the wind blows the grass low, and cattle and sheep see it together.
From the northern folk song "Chile Song", also found in Yuefu poems, it is generally considered as a translation of Xianbei language.
Other poems with sheep are generally not about sheep. I'm afraid it's hard to find poems about sheep running on the grassland.