Perhaps the most active and acrobatic bird in this list is the Barn Swallow. These birds are small and mighty, as well as truly beautiful. They have a luscious dark blue wash on their faces and upper bodies, as well as a contrasting rouged-orange pigment on their chins that extends downwards onto their bellies. As well as a remarkable colour display, these birds are rather uniquely shaped; with flattened heads, broad shoulders and iconic long, deep forked tails.