About "Wildfire" -

"The lyrics are those of a homesteader telling the story of a young Nebraska woman said to have died searching for her escaped pony, "Wildfire", during a blizzard. The homesteader finds himself in a similar situation, doomed in an early winter storm. A hoot owl has perched outside of his window for six nights, and the homesteader believes the owl is a sign that the ghost of the young woman is calling for him. He hopes to join her (presumably in heaven) and spend eternity riding Wildfire with her, leaving the difficulties of earthly life behind.

In a 2008 interview, Murphey talked about the origins of the song and the context in which it was written. He was a third-year student at UCLA, working on a concept album for Kenny Rogers (The Ballad of Calico). The work was demanding, sometimes taking more than 20 hours a day. One night, he dreamed the song in its totality, writing it up in a few hours the next morning. He believes the song came to him from a story his grandfather told him when he was a little boy – a prominent Native American legend about a ghost horse. Murphey did not have a horse named Wildfire until a few years before the interview, when he gave that name to a palomino mare."

https://en.wikipedia.org/wiki/Wildfire_(Michael_Martin_Murphey_song)