Caillou and Daddy are in the garden and Caillou notices a dead bird on the ground. Caillou asks if it's dead and Dad affirms. He suggests burying it and Caillou agrees. They bury the bird and Caillou asks Dad point blank why the bird died. Dad says that it's a tough question and the narrator interjects that Caillou didn't think that it was such a tough question. Dad decides that it's for the best not to tell Caillou about the bird's unfortunate run-in with Gilbert and says that the bird died because it was too old. Caillou accepts this, but seems troubled. Throughout his day, Caillou hears a number of people comment about how old they are. Dad has trouble reading the paper and comments that he must need glasses - he's getting old. Sarah got in-line skates for her birthday - she's a whole year older. When Daddy is tucking Caillou into bed that night, he says that Caillou is getting bigger and older every day. Caillou breaks down. He explains his concern about the bird and Dad tells him that he has lots of time to get bigger and older. So does Teddy.