On Saturday afternoon, I walked for about five miles through Central Park. I was able to add three more birds to my 2018 Manhattan list, a Ring-Necked Duck (female at the North Gate House of the Reservoir), a Great Cormorant (on the dike in the middle of the Reservoir, a rare visitor to Central Park, but seen frequently off Randalls Island in the winter) and an immature Cooper's Hawk.
The Cooper's Hawk was exploring the Loch, a waterway with three waterfalls that flows under the Glen Span and Huddlestone arches from The Pool to the Harlem Meer. It has recently been restored by the Central Park Conservancy. The restoration carefully reshaped the waterway, to provide a mix of currents and depths designed to maximize biodiversity, with the help of a environmental consulting company. Improved landscaping was also added to minimize erosion and run offs from the North Meadow Ball Fields. I'm looking forward to seeing the biodiversity results in a few years.