Pigeons wearing cowboy hats have popped up around Las Vegas and videos of them are going viral.

A local animal rights group has, however, expressed concern for what effect the hats might have on the birds.

It remains unclear who or why the hats were placed on the birds.

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A video has gone viral showing pigeons wearing cowboy hats in Las Vegas, but an animal rights organization is concerned about the impact the hats have on the birds.

Bobby Lee last week shared a video on Facebook of the pigeons in a parking lot in Las Vegas wearing orange-colored hats. "Just another day in the neighborhood," the caption of Lee's post read.

In the 13-second clip of the pigeons, Lee can be heard saying: "f*king birds have hats on, bro… The s--- you see in my neighborhood."

The New York Post reported that the pigeons were filmed near Tropicana Avenue and Maryland Parkway in Las Vegas.

By Tuesday morning the video has been shared over 1,400 times with Facebook users commenting on how funny it is.

"They're going to the rodeo," one comment read.

Other videos, too, popped up showing behatted pigeons on the street.

Local animal rescue and pigeon advocacy group Lofty Hopes has, however, expressed concern over the effect the hats might have on the birds which appear to be glued on, KVVU reported. It has set up a hotline for anyone to call if they see a pigeon wearing a hat.

It remains unclear who placed the hats on the birds or why.

Lofty Hopes' Mariah Hillman asked members of the public to alert the organization when they spot the birds to have the hats removed.

"At first, I was like, oh my God that's cute! Then, I was like, wait a minute — how did they get those hats on there," Hillman told KVVU. "Did they glue them? And what does that mean for them? Is it something that's going to impede their flight or attract predators?"

Speaking to Storyful, Lee, who filmed the pigeons, said he spotted the pigeons when he was leaving his neighborhood with his girlfriend.

"I saw something red on the pigeon's head and looked down to these awesome things. The rodeo is in town so that's the only explanation I have," Lee told Storyful.