this post (which includes the mom eating the placenta.)
here (and see more cute calf and Desert Boy photos).
A couple days after birth, the calves and their mamas are moved out of the Circle Field (aka the birthing field) to a meadow where they can hang out in the nursery. That makes it easier to check the birthing field to see how the cows are doing.
I didn't shoot any video, but if seeing all these cows makes you long to hear some cows, you can see my YouTube video. For some reason, over half a million people have wanted to watch cows mooing. You can be one, too! :)