After reading Knersie's post it made me curious about the latest born calf. I had a Holstein heifer that was bred AI to calve 5/11. The following day I put a Gelbvieh bull with her and the rest of the group to cleanup. Now I know in most cases that is a no no for the sake of sire identification. However, it was my belief that a crossbred calf would easily be identifiable from a Holstein calf. She calved on 5/29 with a heifer that looks mostly Holstein. Her legs have a little funky pattern to her coloration but IMO could be Holstein markings. I'm wondering if it would be possible for a calf to be 18 days late? I've had two others calve since that were with the same bull and both have been solid colored calves(one black and one red).