Peregrine Falcon on the mountain

I was checking out the web page of the Shenandoah National Park and found the Peregrine Falcon web cam. I've checked it out before just to see the Page Valley in the back ground. It looks just like a rocky ledge with a bunch of little rock laying around. You can imagine my surprise when yesterday morning I saw a falcon and what looked like an egg. I couldn't believe a bird would use that rocky ledge for a nest let alone lay an egg in the cold weather. The Rangers acknowledged the egg and bird were there March 13. When I went to the web cam today the egg and bird were gone. Where did they go? I emailed the rangers for information as to what happened to the egg. Maybe they lay eggs at any time not knowing it was going down to 21 degrees in the next 2 day. If I hear back from the ranger I will let you know. Please check out the web site and see the parks cams. I watch the Big Meadows cam and one day saw a wild fire spread across the meadow and then burn out. The Big Meadows cam was turned off the day President Bush arrived there in his helicopter. Too bad, I would have liked to see that. http://www.nps.gov/shen/photosmultimedia/falconcam.htm