The default rarity is the minimum when a pet is learned. For wild pets this is usually "poor". Pets from other sources can be common, uncommon or rare by default.
Source:
Drop
Expansion:
Battle for Azeroth
Owned by:
36.78%
Based on this many collections: 35828
Players who own this pet have it:
Once: 84.87%
Twice: 10.44%
Thrice: 4.69%
Strategies:
5
Popularity:
Low
Pageviews:
8027
Breeds:
SS, PS
Flying
Flying creatures gain 50% extra speed while above 50% health.
50% vs.
33% vs.
33% vs.
50% vs.
This butterfly is stained red from the blood of its enemies.
Source 
PvE 
PvP 
Other Info 
New Comment: