How much energy would an owl use for its life processes or lose as heat?

The energy an owl uses for its life processes, or loses as heat, varies based on factors such as species, size, metabolic rate, and activity level. On average, an owl's basal metabolic rate (BMR) can range from 0.5 to 1.5 watts per gram of body weight, translating to a significant amount of energy expended over time. In general, owls are efficient predators, but they still lose a considerable amount of energy as heat through metabolic processes, especially during periods of activity like hunting and flying. Overall, precise energy expenditure can be quantified through detailed studies on specific owl species and their environments.