Anatomy of the propatagium: The great horned owl (Bubo virginianus).

@article{Brown1994AnatomyOT,
  title={Anatomy of the propatagium: The great horned owl (Bubo virginianus).},
  author={Richard E Brown and Julian J. Baumel and Robert D Klemm},
  journal={Journal of morphology},
  year={1994},
  volume={219 2},
  pages={
          205-224
        }
}
Skinfolds and feathers form the profile of the avian airfoil. The wing of birds has a nearly flat profile from shoulder to carpus, without the presence of the propatagium. The propatagium is the largest skinfold of the wing; it fills the angle formed by the partially flexed elbow, and with its feathers forms a rounded leading edge and dorsally cambered profile added to the cranial aspect of the wing. The propatagium is variably deployed, relative to elbow extension, in flight; support for its… CONTINUE READING