We now gave it a variable scent, class skills, domains, I think that's about it. Unless someone wants to add a sidebar about variant abilities or its relationship to say the also druidic wurms.
What variable scent? Wasn't that the last dragon we did, the Tourmaline?
How about Handle Animal, Survival, and maybe something like Heal or Swim? Hide for the small animal forms?
Well some skills from the Druid's list would seem appropriate.
Druid - Concentration, Craft, Diplomacy, Handle Animal, Heal, Knowledge (nature), Listen, Profession, Ride, Spellcraft, Spot, Survival and Swim.
Dragons already have Concentration, Diplomacy, Knowledge, Listen and Spot.
That leaves Craft, Handle Animal, Heal, Profession, Ride, Spellcraft, Survival and Swim.
Craft and Profession seem unlikely.
Handle Animal, Heal, Spellcraft and Survival look the most tempting to me.