SOLVED. scifi: short: alien (device?) capturing lifeforms, resembles 'most dangerous game' - protag == hunter(?, armed w/rifle?) [s]

[Justanotherbiblophile]

SOLVED: "The Ruum" (info) by Arthur Porges (RIO)

Very vague memory. Almost 100% positive that it is a short story.

There was a device/machine (almost certain that it was alien?) that was going around an environment (island? or way north Canada?/Alaska? == vast wilderness) wrapping up lifeforms (I think a rabbit?) in (I think) some type of force/stasis field. Our protag is (maybe?) a hunter (who may have been hunting another armed human) who needs to outwit it - because it's working its way up to bigger game - ie: humans (or bear/major predator?) and his opponent.

(view spoiler)[I believe the twist was that he arranged to get the machine to capture his opponent. OR managed to defeat the machine so that it could not take its collection away from Earth (hide spoiler)]

[Sue]

'The Ruum' by Arthyr Porges?
"A shape-shifting, indestructible robot—a "Type H-9 Ruum"—is accidentally left behind on earth during the age of the dinosaurs by visiting aliens, and not recovered because their ship is destroyed in a battle. The Ruum's work is collecting different species of animals weighing 160 pounds (give or take 15 pounds) and preserving them in a state of suspended animation for later retrieval.

Many millions of years later Jim Irwin, a uranium prospector in the Canadian Rocky Mountains, encounters the Ruum's specimens, animals which include modern and prehistoric mammals and a small Stegosaurus. After he has noticed that the animals are all of a uniform size, and alive, the still-functioning Ruum appears. Shooting it with a rifle does not damage it, and when the approaching blob-shaped Ruum reveals gripping hooks and a probe dripping green liquid, Irwin runs as it pursues him at a steady five miles per hour. It is noted that Irwin weighs 149 pounds.

Fit and military-trained, Irwin attempts to evade and destroy the Ruum. First he hides above his trail and drops a boulder on it, but this also fails to damage it. Then he climbs a sheer cliff, but the Ruum extrudes a climbing claw to the ledge where he is hidden. He tries to dislodge it with a stick, and finds the Ruum can generate an electric shock. He shoots it and dislodges it, but the Ruum is unharmed by the fall and responds by growing multiple claws. Having not had any time for food or sleep, Irwin eventually circles back to his camp by a lake and sets a trap with dynamite. Taking advantage of the Ruum's distraction by a grizzly bear, which it kills, he detonates the dynamite using a pistol bullet.

Dazed by the explosion, he sees the Ruum still unharmed and still approaching. Exhausted and defenseless, he awaits it adding him to its collection. However, it lifts him up, then puts him back down and leaves. Soon afterward, his colleague Walt Leonard arrives by seaplane and rescues him. Safely in the plane, they make plans to bring a helicopter and collect some of the Ruum's specimens in its absence to sell to scientists. Leonard comments on Irwin's haggard appearance, guessing him to have lost 10 pounds during the chase: the reader understands that this caused his weight to become less than the Ruum's weight criterion."

[Justanotherbiblophile]

This is certainly it. However, you coulda used some spoiler tags.

[Justanotherbiblophile]

organizing, nothing to see here.