Which is NOT a common method of euthanasia used in wildlife rehabilitation?

Shooting is generally not considered an acceptable method for humanely euthanizing animals within the context of wildlife rehabilitation. The primary reason for this is that euthanasia in wildlife rehabilitation settings aims to minimize stress and suffering for the animal, which can be difficult to achieve with shooting. In a rehabilitative environment, where animals are often handled and require care, the focus is on humane, controlled methods that ensure a quick and painless death.

Common methods of euthanasia such as inhalant anesthetics, injections of euthanasia solutions, and carbon dioxide gas are favored because they allow for a more humane and less stressful process, facilitating a peaceful end for the animal. These methods are generally performed in a clinical setting by trained professionals, ensuring that the procedure is conducted properly to minimize distress.