Mudminnow River what's this????

All are welcome(Looking for friendly characters)!! This is for Ilya's naturalist trade and once developed it will be used as a pack activity. (: Anyone can join but I'm tagging a few wolves that Ilya both knows and doesn't know in order to broaden her experience and so she can make acquaintances. (: @Luke @Kieran @Haven @Vulpine

The black fae sat quietly at the banks of the river, watching it curiously as it flowed. "Hmpf," she muttered softly and stood to approach the water. She stuck her left paw in the water and carefully observed it. "Lower," she noted to herself, "and much colder," she added aside. She picked up a large, flat river stone sitting not too far from the waters edge and dropped it on its other side. On it were markings that didn't appear to have much meaning, but to her they were far different and meant far more.

Using her right paw, Ilya drug her furthest left claw across the large rock, creating two short, horizontal lines beside a group of similar lines. Some had more lines; some had less. She examined her markings curiously and cocked her head as she thought. "It's down three marks this week; I wonder why," she thought aloud, sniffing at the waters edge. "The rain has been pretty consistent, if anything it's rained more..." 

She sat and contemplated her new issue, and wondered what might be causing it to go down, flipping her rock back over and wondering if she should search for the predicament. If anything there would be a problem upstream.