In my first post on this site, I mentioned that the Archangel Gabriel possessed a flaming horse. It is hard to find mention of this horse anywhere except Wikipedia, but with a bit of internet elbow grease he can be found.
The horse Haizum, according to some Islamic traditions, was given to God’s gift to Gabriel after the archangel did some unnamed task that pleased him. Haizum was said to be a white, fiery, spiritual horse with a pair of wings like Pegasus which he could use to fly from one plane of existence to another in only a second.
This is not the Archangel’s only odd animal companion as Gabriel’s Hounds are apparently flocks of wild geese. Seems like he/she has quite a lot of pets. Though considering Raphael is said to carry around a fish on a stick and Jehudiel (or Jegudiel) carries around a flaming heart in some art, I think Gabriel is pretty happy with the horse and “hounds.”