I was referring to the first sets. August Breeze is a birthmonth Pony & I wasn't born in August, while Aurora Mist is a pegasus & classed in the pegasus sets along with Windy Wisp
Okay and? They still count as jewel ponies, I'm not born in August either, that wouldn't stop me from getting her. You can't say that there are none and then continue to deny the fact that there are two when its pointed out to you.
Other Pegasus belong to different sets as well. G3 blurred a lot of lines when it came to sets. Not all of them were quite as defined. And just like with G1, there are ponies from different sets or stand-alones that also belong to more then one group. Yum Yum is classified as both a Party Pack Pony and as a Flutter Pony for example.