Assertion: buteo hawk | /r/HasProperty | 30 g
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text: For comparison, two other widespread Buteo hawks in North America were found to weigh: 30 g (1.1 oz) for every square centimeter of wing area in the rough-legged buzzard (Buteo lagopus) and 44 g (1.6 oz) per square cm in the red-shouldered hawk (Buteo lineatus).