Step outside this week and discover nature in the call of the American toad. This most common toad in Missouri will start calling that sustained, high-pitched musical trill this week from area ponds and water-filled ditches. These amphibians control destructive insects and add their voices to the outdoor choir we enjoy on Missouri spring and summer nights. Missouri toads and frogs are colorful, harmless, vocal and valuable. Our forests, prairies, rivers, swamps and marshes are home to a