Yes, it can be done, but it is work and you lose some shots. How? Hunting blind; pre-focused camera on tripod via remote control; sitting very still in camo; slow stalking; large crops . . . lots of ways, I've done it all those ways.
I upgraded to a 400/5.6 L prime early this year(and I immediately understood how it would be much better usually), but the marvelous EF 200/2.8 II L prime lens will always have a place too in my bag!
All shots below: EF 200mm/2.8 II L
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