Not sure whether this has been mentioned here before but there is an excellent webcam of a Griffon Vulture nest on cliffs above the River Tagus in Portugal.
This is a "real time" webcam (not like the U.K. Osprey cams which give an updated still image every 10 seconds or so). The site sometimes takes a while to connect but when it has you can see the water moving in the river (top left) and vegetation blowing about (bottom right), as well as other birds flying across the screen.
There are long periods of inactivity where the two chicks appear not to move, but when the parents come to feed it is quite entertaining. Last year a Ruppell's Vulture attacked the nest on many occasions while the adults were sitting on eggs - some of that footage is available in the archive material at the bottom of the page.