An adult male Red-winged Blackbird weighs about 60.5 grams, with a wing span of about 120 mm.
An adult male Sandhill Crane can weigh 4.8 kilograms, and often has a wing span of 2 meters.
Red-winged Blackbirds nest in clumps of reeds. Sandhill Cranes forage in reeds, and think a Blackbird egg or chick is a pretty tasty meal. You’d think it would be no contest. You’d think the Crane always wins.
You’d be wrong.
The Sandhill Crane was eighty times bigger than the Red-winged Blackbird, but the Blackbird succeeded in driving the Crane away. You see why WC finds birds endlessly fascinating?