As we can see, she’s well-versed in the traditional “mummah song” to call her babies over for milk.
She doesn’t appear at this time to have picked a bestest babbeh, which only serves to benefit the whole little herd. With careful monitoring and discipline, this new mummah will raise her little ones right!
Depends on head-canon, with runts being fairly common I’d guess it’s not outside the realms of possibility that a Fluffy is born legless.
But Fluffies are created by fucked up science so it’s just as possible to have a mare designed to birth pillows. Slightly more sinister compared to the tragic outcome of the former but not impossible to think about