The two females are pregnant and it's a little late in the year for them. The survival of the lambs at this time of year with temperatures over 100 degrees already is not a sure thing. I hope they make it. There could be one lamb or twins for each mom. From what I read the lambs are completely weaned at 4 to 6 months of age and will form their own groups, but this young one sure stuck close to it's mom (I'm guessing).