When you need help for an ailing bird, just tweet!

A Brooklyn woman used Twitter to help the NYPD rescue an injured hawk in Manhattan’s Financial District on Tuesday morning.

Madeleine Weatherhead told The Post she was walking to work around 10 a.m. when she spotted the raptor on the Front Street sidewalk outside the Wellville restaurant near Wall Street.

“The bird looked disoriented. It was staring off and wasn’t even paying attention to the fact that there were people close to it,” she said.

Weatherhead, 27, snapped a picture and spoke to workers inside the eatery who “said they thought the bird had hit the window.”

After calling 311 and leaving a message for the Animal Care Center of NYC, she tweeted a photo of the ailing animal to groups including the non-profit Wild Bird Fund, which runs a wildlife rehabilitation clinic on the Upper West Side.

The WBF tweeted back and tagged the NYPD’s First Precinct, which sent Officers Maxwell Outsen and Joseph Bellomo to the scene with an animal crate.

They cleared the area and called the NYPD’s Emergency Services Unit, which wrapped the bird in a blanket and took it to the WBF for treatment.

“People were very appreciative and thanking us. But we were just doing our job,” Outsen said.

WBF Director Rita McMahon said the bird — a young adult female red-tailed hawk — appeared to have gotten into an aerial fight with another hawk or a peregrine falcon, then plunged to the ground.

“There are notches in her beak. The tips of her talons are also notched,” McMahon said.

“It looks like it was a real battle.”

McMahon said the 2-1/2-pound hawk didn’t appear to have any broken bones but was in shock after likely suffering a “big concussion.”

It was given saline injections into its legs and put in a covered cage to recover, and was lying down when last checked on.

“I think she really hurts,” McMahon said.

McMahon put the bird’s chances at “a little better than 50-50,” and said it would be sent to the Raptor Trust in Millington, New Jersey, if it didn’t bounce back immediately.