R.Clapp - 1964 Nov. 15 Makin Atoll, Gilbert Islands and a Godwit, and I shot three Godwits with four shots. The bill size on the Godwits varied tremendously Two individuals had bills only about half as long as the other two. These birds with the short bills weighed less also. (They looked different enough so that the others that thought that they might be two different species.) Later, when I skinned the birds in the afternoon it proved to be a case of sexual dimorphism with the males possessing the short bills and the females the long bills. Movie : Bye Bye Birdie (yeech) and My Favorite Spy.