The Horned Screamer
Would you be able to look at the horned screamer and tell that it’s a relative of the swan? This is one of the strangest birds on this list, mostly because of its appearance. It has a horn-like appendage on top of its head that doesn’t seem to have any real purpose. However, they do have spurs on their wings that they use for fighting. They have quite large feet that aren’t webbed, because they mostly reside in marshlands. Their call is also quite bizarre to listen to and can be quite startling if you’re not prepared for it.