Originally Posted by ClapperZapper
Ted, RGS tells me that when they do large radio transmitter studies of adult grouse, at least half are killed by avian predators. That’s mostly in the context of Hunter impact additive or compensatory, but nevertheless, when they find a carcass after a mortality trigger, it’s about a 50-50 chance that the sign is the death came from another bird.

Gordon Gullion had figured that out by 1962, without telemetry.

Best,
Ted