In the stables there are many horses and Pegasuses. To make it easier here's a list.

Horses
Madi-A liver chestnut mare, 5 years old, owned by Alex
Spirit-A busking stallion, 4 years old, Madi's mate
Destiny-A black colt with a white star on his forehead, new born, Madi's foal
Faith-A pinto stallion, 9 years
Midnight-A pure black stallion, 9 years old
Bear-A brown gelding, 22 years old
Comet-A bay gelding, 14 years old
Rain-A pinto mare, 5 years old
Solace-A red chestnut stallion, 3 years old
Twilight-A busking filly, 1 year old
Snowdust-A white mare, 10 years old

Pegasuses
Pegasus-A white stallion with a blueish mane and tail, couple hundred years old
Raindow-A white filly with a rainbow mane and tail, 11 months old
Starlight-A golden mare, 12 years old, twin is Moonlight
Moonlight-A silver stallion, 12 years old, twin is Starlight
Snow-A white stallion, 25 years old
Devil-A pitch black stallion, 6 years old
Tornado-A gray mare, 13 years old
Dawn-A golden mare, 8 years old