If you are lucky enough to be in SW France there is an Ecopark at
Rocamadour where you can get very close to various Eagles and
Vultures; they are free flown each day.
Griffon Vultures are big ~11kg; ~26lbs! When you have stood next
to one or had one fly past your head a foot or so away you can
appreciate why having a mid-air with one can be so disastrous.
They also have Andean Condors: an even bigger hazard.
Well worth a visit: -

http://www.rocherdesaigles.com