Possible Clues:

• The geese got the wind up about the horse
• Line in funny story, say, about flock of birds
• It takes geese to stop talking over a broken leg
• Cackling sound? It's all the geese!
• Herd of honkers
• The birds can't speak with a broken leg
• Bunch of honkers
• Anserine group
• Alternative name for a flock of geese
• Gathering of wandering geese