Animal Imagery: The SPD Grows Wings (and Fangs)
As quoted in the same FAZ article, Beck's replacement Müntefering likewise resorted to animal imagery -- bizarrely mixed with a bad pun -- in calling for the quarrelsome "wings" [Flügel] of the party to come together. "One needs wings if one wants to move forward fast," Müntefering said, "But the wings have to know that there is a head in between them. Wings by themselves don't make any sense."
Müntefering, as so happens, has something of a history with dubious animal metaphors. It was the same Franz Müntefering who during his first stint as SPD party chair famously described financial investment groups as "locusts."