In spring conditions it often happens that the upper layer of snow warms up and small pieces of it roll down leaving traces behind them.
Like in this picture I have found in the Internet:
Given that there is a solid base layer of snow below, is it a sign of increased avalanche danger? E.g. if you compare two similar mountain slopes (same altitude, same exposure, same inclination) in the exact same conditions (same season, temperature, time of the day), does the slope with rolled down snow pieces has a higher avalanche danger?