for Ponies that have a Unicorn parent, and a Pegasus parent
and that it shows

PegaCorn: half Pegasus, half uniCorn
a child that was born with voth racial trats of their Pegasus parent, and uniCorn parent as well

Pegacorn. Have both wings and horn. Do not grow larger than average. Do not live longer than average. Lack characteristics of earth-ponies. Magic may be weaker than average due to being spread between two magical aspects. Wings are often regular pegasi wings.

Alicorn. Have both wings and horn. Can grow to be much bigger than other ponies. Can live much longer than other ponies. Have aspects of all three major tribes, including earth-ponies. Magic is stronger than average. Wings are larger and have more feathers than regular pegasi wings.

edit:
Do you think one of them is a Pegacorn ?