Birding the Bronx River, other spots here and there

The Bronx River flows under E Tremont Ave, south
of the Bronx Zoo, past Drew Gardens.

A Double-crested Cormorant and Canada Geese use the
river next to Drew Gardens, a 2-acre community garden.

Drew Garden's land is mainly used for fruit, vegetable, and
flower gardening by its members. It features a pollinator garden,
several native trees, and some habitat along the riparian zone.
Although I haven't birded here, in the time I have spent there
I have seen Yellow Warblers, Gray Catbirds, and even bumped
into an American Woodcock migrating through one March. 

Concrete Plant Park has potential during migration. It's along
the Bronx River, which birds may follow, and it is a green
oasis in a concrete jungle. At low tide, mudflats are exposed-
could there be shorebirds there?