If one goes to http://www.pbs.org/lifeofbirds/making/index.html you will see the Mallard shot with the explanation that this was an "imprinted" duck (similar to the geese following the ultralight aircraft). I had wondered the same thing, too. Joe ----- Original Message ----- From: <THBeal@aol.com> To: <BIRDCHAT@listserv.arizona.edu> Cc: <mdosprey@ARI.Net> Sent: Wednesday, July 28, 1999 10:02 AM Subject: [MDOsprey] "Life of Bbirds" Technical Question > I have been deleteing the "Life of Birds" postings before reading them, so > please excuse me if this question has been asked before. > > How did they achieve those close-ups of geese and ducks in flight? > > Tom Beal > Glenn Dale, MD > Thbeal@aol.com >