What signs does great blue herons leave behind?

Great blue herons leave behind several signs that indicate their presence. Look for distinctive footprints in mud or soft soil, which feature long toes and a pointed shape. They may also leave behind feathers, particularly during molting season, and their nests, often located in tall trees or marshes, can be identified by the large sticks and debris they accumulate. Additionally, their fishing areas often show signs of disturbed water and remnants of fish remains nearby.