Pan fydd Deiniol y wennol yn hedfan i Affrica, mae Merfyn yr aderyn du eisiau anfon neges ato. Ond mae Affrica'n bell i ffwrdd. A fydd dolffin chwim, camel diflas, crocodeil barus a mwnci direidus yn llwyddo i roi'r neges i Deiniol? Addasiad o Follow the Swallow.
Deiniol the Swallow and Merfyn the Blackbird meet in the garden as fledglings when they are both learning to fly. Deiniol explains that he is practising flying to Africa - but Chack doesn't believe him. Merfyn tells Deiniol that the blossom on his favourite tree will eventually turn into orange berries - Deiniol doesn't believe him.