From Gus Keri posted on Brooklyn Urban Birders Facebook page
"I have always thought that the Prospect park Lake is much safer than the Upper or Lower pool for ducklings.
Today, I didn't see any duckling (Wood or Mallard) in the Upper or Lower pool but there was a total of 10 ducklings (7 Wood duckling and 3 Mallard duckling) in the Lake, near the West island.
Here is a video of mama Wood Duck with her 7 ducklings."