Pirates in Des Moines?

There was a robbery in Des Moines yesterday afternoon. Police are looking for a bald man, a woman with an eyebrow piercing, and a large green parakeet. No word on whether any of the suspects had wooden legs or hooks. They were last seen sailing — wait, there's no sea near here. What are pirates doing in Iowa?

Be number 1:

 
 
 
knows 2 + one =