Final Answer:
The term "duck factor" in the Parkland region refers to Wetland nesting grounds.
The correct option is (b)
Step-by-step explanation:
In the context of the Parkland region, the "duck factor" specifically points to the importance of wetland nesting grounds for ducks. Wetlands serve as crucial habitats for waterfowl, providing an environment conducive to nesting and raising ducklings. These areas contribute significantly to the conservation of duck populations and the overall biodiversity of the region.
The correct option is (b) Wetland nesting grounds, as it accurately captures the ecological significance of wetlands as vital spaces for ducks to breed and thrive.