Where can I find close-up pictures of a cow giving birth?

You can find such pictures on the internet, by doing a search on your favorite search engine for such Words as "cow birthing" or "calving" or "cow[s] giving birth." Click on images and you should find the kind of pictures you are looking for.

Also, the cattle forum at Cattle-Today.com have several threads where members have posted pictures of cows giving birth. Such a thread can found in the related link section below.