A fifth "Scaredy Squirrel" book, "Scaredy Squirrel Has a Birthday Party", was published in 2011. In the book, Scaredy Squirrel does not want to have a big birthday party for fear of it being spoiled by clownfish, ants, ponies, Bigfoot, confetti or porcupines. He was going to invite only himself to his birthday party, but someone sends him a happy birthday card and Scaredy thinks he has to return the favor and invite him to his party. His Buddy comes to the party with a bunch of other dogs. Scaredy realizes it is much more fun when there are a lot of party friends.