What is The Common Dragon

The very garden variety dragons, or the most common, symbolize ordinary abilities as a stark contrast to the extraordinary abilities of those who capture more unusual and fierce dragons. The first dragon Hiccup captures is a common dragon, and he feels that he is successful because he caught a dragon, regardless of what kind. When he is about to open his basket for the first time, he really hopes he will find an extraordinary dragon. The other boys laugh at him when they see Toothless.