Bam

Bam is a new Thunderdrum dragon that appears in the episode Bing! Bam! Boom! His color is blue, the same as Thornado's.

Information
Ruffnut and Tuffnut named Bam. Like Bing and Boom/Lloyd, they were chased by wild dragons from Dragon Island to the sea stacks but is taken care of by Thornado on Dragon Island

According to the Book of Dragons in Dragons: Rise of Berk, it was revealed Bang is the quietest of the three triplets, though that doesn't say much with Thunderdrums.

Dragonpedia incorrectly refers to him as "Bang."

Trivia

 * Although Bam is blue in the series, he is green in the game Rise of Berk. This appears to be a mix up with Bing's colour.