Best Gigital Camera for Wildlife Photography

What is the best digital camera for wildlife photography?
Camera for wildlife photography must have:

Short start-up time (so that wildlife will not have time to run away from you)
Short Shutter lags (the same reason as from the time of start-up)
Quick Focus
Tele focal length range (greater than 400 mm)
Must provide 3 or more frames per second in continuous shooting (press and keep pressed the