Blimpies
Novella 29,086 words Recommended by 3 award/anthology sources
"In her dream, Kaitlyn Holman is walking her collie on her street in her town with her wife. They have just reached the pond, the three of them, and Kait has unleashed the collie to let it try once again to herd the geese, when a shadow approaches, something big in the sky right above Kait."
Quasar links out; the story lives on Asimov's, where the author gets the click.