I've just completed a quick update on my bird flight page - now the videos should play in all browsers. I received a few emails saying they were broken, technically there was nothing wrong with the movie files but unfortunately that type of embedded quicktime has fallen out of favour with most browsers. I could still get them to work on safari and internet explorer but on chrome and firefox they were bust. So now they're embedded from vimeo. However, if you want the movie files to study and step through, as animators are want to do, you can download the quicktimes from the vimeo page.
Just in case you don't know where the download button is on vimeo