Beefalo will often spawn 1-3 Baby Beefalo during Spring in RoG and DST as Beefalo will not stop their mating season during Spring upon having a baby, as they would any other time of the year.

Does beefalo water Respawn?

They do respawn from nothing in ROG. They have a static herd attribute that isn't dependent on them being alive. The herd will come back eventually.

Do beefalo regenerate?

Beefalo can be shaved with a Razor while they sleep, which causes them to drop three Beefalo Wool. They will regain their hair back in 3 days and can be shaved again at that point. ... When dusk comes around, all nearby Beefalo will group together for the night. Herds regenerate during mating season off-screen.