What the buck?

A wild white-tailed deer ran amok in Brooklyn for more than two hours on Tuesday before police were able to sedate it and haul it back to its Staten Island home.

The antlered antics were first spotted around noon on Ave. S near Ocean Parkway and E 5th Street in Gravesend, the NYPD said.

Photos from the scene showed cops hoofing it behind the nimble Big Apple Bambi — which continued skipping across the residential neighborhood even with a dart lodged in its side.

Officers were finally able to pen the deer in a mounted transport truck at around 2:30 p.m., cops said.

It’s unclear how the animal made it from Staten Island to Brooklyn.

Tags hanging from the buck’s ears, apparently placed there as part of the City’s deer vasectomy program, allowed authorities to “bring him back to where he belongs,” an NYPD spokesman said.