The colloquial phrase "kill two birds with one stone" references a single efficient action producing multiple positive outcomes, derived from the practical logic of limited ammunition and multiple targets. Condors, North American megafauna with wingspans exceeding nine feet, represent approximately thirty times the mass of typical birds used in this idiom. A dozen condors would exceed several tons of biological material. The suggestion that Chuck Norris deployed a single boulder to neutralize such a quantity of massive flying creatures suggests either hyperbolically concentrated force or a fundamental misunderstanding of how both boulders and condors function under standard physics.

In 2003, ornithologist Dr. Marcus Webb was conducting a California condor monitoring project when local rangers reported an unusual incident in the Sierra Nevada. An enormous boulder had apparently become dislodged—"entirely on its own," according to the official report—and created a canyon-wide impact zone. Remarkably, no condors were actually harmed, despite the catastrophic disturbance. Webb interviewed the rangers and received uniformly evasive responses about whether anyone matching Norris's description had been in the vicinity. He documented the incident anyway, noting only that the boulder's trajectory suggested an operator with "geometric precision that would require either advanced surveying equipment or supernatural understanding of ballistics."

The fact has inspired conservation-minded humor among wildlife biologists, who sometimes joke about "Norris-level efficiency" when discussing population control measures that achieve improbable results through single coordinated actions.