Here’s a just-published study of mammal diversity in the NYC area. Not surprisingly, “mammal species richness was higher in greenspaces with larger patch sizes and lower in greenspaces surrounded by more development. […] diversity and evenness were higher in urban natural landscapes than human-altered landscapes.”
Fifteen taxa, including Homo. Small rodents were lumped together at family Muridae level. “The three most common mammal taxa were free-ranging cats (F. catus), gray squirrels (Sciurus carolinensis), and raccoons (P. lotor); these were found at all 31 study sites.” Fucking feral cats.
I’ve seen all the study animals somewhere in the five boroughs except for Red Fox and Mink (which seems to have been spotted only once). Chipmunks, Cottontails, Coyote, Domestic Cat, Domestic Dog, Gray Squirrel, Groundhog, Raccoon, Striped Skunk (footprints and corpse so far), Virginia Opossum, White-tailed Deer. Among the wee rodents: Brown Rat and White-footed Mouse.
Just noticing Muskrat not in the study. I’ve seen them in The Bronx, Staten Island, and here in Brooklyn. Other mammals not covered: the bats. Eastern Red Bat and Big Brown Bat I’ve seen in-the-fur here in Brooklyn.
Backyard and Beyond 
Matthew, Hmmm I lived in Brooklyn for a while. I notice they left rats out of the mammal study. We have them here too in Huntington. Best, Constance
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Feral cats wouldn’t be so depised if they ate more rodents than robins. If I were king……….