Stinkbird Has a Superpower

Stinkbirds have a lot in common with other birds: they have feathers, wings, and a beak. But they also have . . . a hidden superpower! This proud stinkbird papa would love to tell you more about it—if his adorable chick would quit interrupting him!
 
Is it their stinky, poopy smell?
Nope.
 
What about their loud and beautiful song?
Negative.
 
Is it the fact that they can swim?
Not that either, but you’re getting closer.
 
Just what is it that makes stinkbird chicks so special? You’ll have to read the book to find out!