These prehistoric-looking birds may seem like absolute monsters that you need to look out for if you're ever in...I dunno, the swamps of East Africa? But they're actually pretty docile to humans. Researchers studying these birds have been able to come within 6 feet of a shoebill stork on its nest. The shoebill stork will not threaten humans, but will only stare right back at them. 
And the best thing? They bow! Like a shoebill in the Uganda Wildlife Education Center who bowed back towards the visitors who bowed at him! 
Also that Animalogic video is way more amazing at explaining their info than I am, so consider watching it if you wanna know more, haha.