What are the names of the cloud and stork in 'Partly Cloudy'?

The cloud and stork in “Partly Cloudy” are named Gus and Peck.

Gus is a lonely gray cloud who creates unusual, difficult-to-deliver animals instead of the cuddly babies made by the other clouds. Peck is his loyal delivery stork, tasked with carrying Gus’s creations to their waiting families on Earth.

Their partnership drives the short’s emotional story. Peck repeatedly suffers bites, bumps, and stings while delivering Gus’s crocodile, bighorn sheep, and porcupine. When Gus makes a baby shark, Peck becomes frightened and flies away, leaving Gus feeling rejected and heartbroken.

Peck eventually returns wearing protective football gear supplied by another cloud. Gus is delighted and resumes creating deliveries, though his next gift—an electric eel—still gives Peck a shock. The film was written and directed by Peter Sohn and released in 2009 before “Up.” A common mix-up is reversing the roles: Gus is the cloud, while Peck is the stork.