http://news.nationalgeographic.com/n...uck-alien.html
May 30, 2006—As if bird flu fears weren't enough to make ordinary waterfowl suddenly seem creepy, now there's this: an x-ray of a duck with what looks like an alien hiding in its gut. Workers at the International Bird Rescue Research Center (IBRRC) in Fairfield, California, took the x-ray May 21 while treating a mallard duck that had been found with a broken wing.
The scientists—not likely prone to feats of imaginative fancy—were surprised by what they saw: a head snarling at them from within the bird's gizzard (see lower right of photo).
"We're a 35-year-old organization, and we've seen a lot of things—bullets, fish hooks—but this is the first time anything like this has shown up," IBRRC executive director Jay Holcomb told the
San Francisco Chronicle.