The Early Bird and the Worm is a MGM Happy Harmonies cartoon, released in 1936.
A sprightly young bird gets up early, the better to get the jump on his neighborhood worm, but he finds his quarry elusive. The worm, for his part, sets off with a flute and jazzes along happily, out-finessing the bird repeatedly. Then a pair of shiftless crows debate the virtues of early rising and decide that no worm is worth it (clearly, these are shiftless "Negro" stereotypes, though the ethnic angle isn't stressed here so much). Finally, a rattlesnake practices some hypnotic moves on both bird and worm before getting tied up in knots.