Two English Setters, Rusty and Purdy, see a deer with a purple nose and ask her how her nose became purple. The deer denies having a purple nose. The dogs talk to 10 different backyard birds to solve the mystery. A chipmunk, ground hog and racoon help also. The book is all photographs on glossy pages so it is fun for all ages, but targeted for 2 yrs to 3rd grade.