1080View count
1m 2sLength in seconds

Here is a (terrible quality) video of the pets doing a trick after they've finished herding the animals. I've only seen it when you have all of the same pet (I've seen it at 3 of the same and 4 of the same) and the pets are at 4 hearts of friendship or higher. It appears in place of the post-herding scene of your farmer petting a pet for a job well done.