Deadline acquisition Yoenis Cespedes’s eighth-inning home run put the finishing touches on the Mets’ 3-0 win over the Rockies last night, a victory that put them 3.5 games up in the NL East. It was Cespedes’s first homer as a Met, and he says it’s all about his neon tribute to a little avian gatecrasher.

A little parakeet-thing was flitting around Citi Field (there are colonies of parrots and parakeets throughout the outer boroughs), and Cespedes jokingly claimed his neon arm sleeve was a tribute to the bird.

“I see other people using it, a different color,’’ he said. “I just used it because I know there was a bird in the field and I just wanted to look like the bird, and it would bring me some luck.’’

Most of the Deadspin staff was at the Mets game last night. Here’s an exclusive eyewitness report: