Answer:
I travel in a gaggle.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down, but should not be forgotten. What am I?
I hatch without food
I have a gown but I'm not a priest; I have a crown but I'm not a king.
I am a fruit with seed on the outside. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.