The ewes have a date with the ram.
In preperation for breeding season, the spouse and I trimmed their hooves. He held the ewe while I trimmed. Soon the ewes were sporting trimmed, balanced nails.
The romantic would say they wanted to look their best for their suitor.
Others would say it allows them to run away from him faster.
Practical me says that it's easier to trim a ewe when she's not pregnant or nursing lambs.