Why Are Female Raptors Bigger Than Males? Understanding Reverse Sexual Dimorphism (RSD)
It’s a crisp October morning at the Commissary Ridge HawkWatch. It’s your second day visiting the migration site, and the count has been slow but steady, with mostly Swainson’s Hawks rising along the ridge lift then gliding south. You’re scanning the sky when a large silhouette appears over Wyoming Peak. A massive Golden Eagle flies […]
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