Officers investigating the cause of a Jan. 10 fire at an office building in West Virginia have revealed the possible culprits of the blaze - birds. According to authorities the reason to single out the unusual suspects stems from a huge nest, littered with dozens of cigarette butts, that was found in the attic of the building.

Fire Marshals believe that a pigeon or another kind of bird may have carried a burning cigarette butt into the attic of the Ratcliff Place that eventually led to fire.

It's just a theory at this point, one that he's "taking a good bit of ribbing over," Fire Capt. David Bias told the AP.

Bias said that an initial investigation of the incident and the evolving clues, all point to a slow burn in the attic.

For instance, the ceiling where the fire started was inaccessible to humans, there were no electrical lines in the area and burn patterns spread away from the nest in three directions.

"It's a possibility that has to be truly considered," Bias said.

Bias said any role of birds in the fire could not be confirmed until they receive lab results back on evidence sent to the Bureau of Alcohol, Tobacco, Firearms and Explosives.