Caw from unseen bird.
Crows are louder and shriller.
Could be a raven.

Overlay © John Cobb | Unsplash

While my own sightings are few and long ago, I believe ravens still inhabit the region where I live and am confident that I can distinguish the croaking caw of a raven from the canonical caw of a crow.  (Don’t hike much any more; still big on alliteration.)  I also have some of indigenous folklore’s admiration of ravens, so I celebrated hearing one with a haiku.  That posed a problem.

An ordinary image of a raven would not work for my haiku about an unseen bird thought to be a raven.  I considered posting the haiku by itself, but I like images.  Hmmm.  I can photograph the nondescript view toward where the call seemed to originate.  Can I then find and tweak an image of a raven to make a ghostly overlay that fits the mood of the haiku?  Yes!