Birders are flocking to Prospect Park to catch a glimpse of a rare bird that touched down in Brooklyn over the weekend.

At least 100 avian enthusiasts a day are showing up at the park’s LeFrak Center to see the Florida tweeter — called a painted bunting — with its multicolored plumage.

“A lot of people are losing their s–t over this bird,” crowed Doug Gochfeld, a birding-tour leader.

Keir Randall, of Brooklyn, was the first to spot the colorful bird while walking in the park on Sunday.

“When I first tried to photograph it, I was literally shaking so much I had to calm myself down to get the shot,” he said.

This is the first adult male painted bunting that’s ever had a recorded visit to Brooklyn — and one of only 10 birds of his species to have arrived in NYC since 1927, according to data compiled by the New York State Avian Records Committee.

“People are just ecstatic,” chirped Rob Bate, the president of the Brooklyn Bird Club.