Seekers are special kind of pegasus ponies. In the most of cases, Seekers can be found in Decepticon lines as they were part of their army.
Seekers are kind of different from other pegasi. They are born in the sky cities, educated with their history, culture and language, and trained for their style of life. They are real excellent fliers and masters of controlling the weather. Even when one of the parents isn't a seeker, their child can become one, because he/she will have the genes of the Seeker parent and can be educated and trained that way.
Seekers are too very well known for being excellent baby-sitters and capable of good family life. They protect their offspring very fiercely and tend to be great parents.