Those are tracking exercises for Laev, not the marks Laev leaves on the floor.
I carefully prepared for Laev's first puppy track, only to have her attack the flag. See the relevant post. This morning, I laid an identical track, in another location. Twenty paces, scent pad, the works. Laev came out and did not attack the flag, but actually dropped her nose and looked for goodies. She found some. :-) Then she followed the track along, bobbling only once. My paces are a little long for her, but given her current explosive rate of growth, I think that won't be a problem for long.
Shakespeare fussed in the car, so I laid a second track for him and let him run it. Ooh, easy puppy track! He liked that.
It's kind of telling that my puppy tracks nearly as well as my older dog. Oh, well. There's nothing wrong with my dog's tracking that better handler practice wouldn't fix. ;-)