I can help with a general, compassionate answer. Direct answer:
If you’re seeing a baby duck and wonder where its mama is, mothers typically stay close to their ducklings and will be nearby, often feeding a short distance away and returning periodically to guard and guide the brood. If the ducklings appear healthy and the area isn’t dangerous, the best approach is to observe from a distance and avoid handling the babies. Disturbing a brood can cause the mother to abandon them, and keeping a respectful space gives them the best chance to stay together and stay safe. If you suspect the mother is injured, stressed, or the babies are in immediate danger (e.g., roadway traffic, predators, or a lack of water), contact local animal control or a wildlife rescue organization for guidance. Key tips to support the brood without causing harm:

• Do not attempt to move or relocate the ducklings unless a wildlife professional instructs you to.
• If the group is in a hazardous area (roadway, driveway, busy yard), you can gently redirect people and pets away from the area and create a safer buffer.
• If the mother is clearly distressed or the brood is stranded with no sign of the mother for an extended period, seek advice from local wildlife authorities.

If you’d like, share your location (e.g., city or country) and any urgent details (are they near traffic, water, or a yard with pets), and the next steps from local wildlife services can be provided.