The locations of HH objects in Serpens–Aquila. The newly discovered HH objects are marked with pink filled squares, literature HH objects are marked as wide orange diamonds (or with an orange × for HH 172, 456, and 457, which are not recovered in our work), while proposed progenitors are shown with thin red diamonds. Red open diamonds indicate cases where there are multiple possible progenitors for one HH object. Purple outlines indicate the locations of zoomed-in inset maps provided in Figures 5, 6, and 7, highlighting sectors of the survey footprint in which HH objects are concentrated.