Song of Mending

At the end of your turn each hero within 3 spaces of you recovers a wound .

Does the skill above include yourself as you are a hero within 3 spaces of yourself ? I am not sure would the Bard Hero also recover a wound or not

Yes, the heart recovery on Bard's Song of Mending does include himself.

The stamina recovery does not - notice the wording for that ability says 'each other hero within 3 spaces'.