* Yamano Koichi's "Where Do the Birds Fly Now" (novelette, fantasy)

Somewhere during their evolution, birds had figured out a way of traveling in 3 dimensions, unlike mammals. Now they've gone a step beyond - they can now fly in forth dimension too!!! In a story involving alternate universes, huge 4D flying predators seem to be overrunning humanity one alternate world at a time!

Collected in.

1. Gene van Troyer & Grania Davis (Ed)'s "Speculative Japan: Outstanding Tales of Japanese Science Fiction and Fantasy".
   

Fact sheet.

First published: Hayakawa SF Magazine, February 1971; translated by Dana Lewis.
Rating: C
Download full text.

Note: Why is this post so short?