In what became an internet sensation, an ornithologist once wrote about a colony of sparrows who, due to a genetic mutation exacerbated by the founder effect on their small offshore island home, could not sing within the range of other sparrows’ hearing. Forced to inbreed, their population grew smaller and smaller due to infertile eggs and the slow arch of time.
These birds–the “loneliest sparrows on the planet” were the subject of a documentary, a Kickstarter, and even some internet innovations aimed at making their high-pitched songs understandable to mainland sparrows (who could presumably then flit over and add fresh new blood to the isolate population dynamics). But the sparrows proved elusive; the island often varied from description to description, and those islands matching the descriptions often contained no sparrows. Those that did typically featured thoroughly natural birdsong audible to human and bird alike.
There was a reason. The ornithologist’s piece had been a fabrication–they claimed it was a piece of fiction, though they’d had no qualms about basking in the adulation of internet denizens.
The elusive sparrows were in fact illusive sparrows, more a metaphor of the longing of human nature to fit creatures into anthropomorphic narratives than anything else.