Dr. Kenneth E. Campbell, (one of the discoverers) in front of the 25 ft.
wingspan Argentavis Magnificens. Display seen at the Natural History
Museum, Los Angeles. The
feather size from such a bird is estimated
to have been 1.5 meters long (60 inches); and 20 centimeters wide (8
inches). Such a huge size would
make the feather at least 5 feet long,
similar to the one described as coming from the Desert Southwest in:
THE BOY AND THE GIANT FEATHER
TALON AND SCRATCH MARKS FROM THE GIANT BIRD