Basketball Birds/Looking for Litter

S1 E10: When Alma and Rafia find a bird's nest in the park's basketball hoop, they recruit their friends to help keep it safe. But when it's time to go home, Alma tries to think of a way to protect the nest, even when her friends aren't around. Then, after cleaning up the playground, Alma and her friends go undercover and follow the litter clues to find out where the trash is coming from.