The Cornell Lab Bird Academy › Discussion Groups › Community Forum › Bird dispersal after fledging.

    • Darren
      Participant
      Chirps: 5
      We feed goldfinches and see large populations (50+). I understand the effect of molting and birds seem to disappear. That doesn't explain the drop in numbers as fall approaches. Is there an explanation?
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    • GBird
      Participant
      Chirps: 30
      i think some goldfinches do migrate while others don't. that would explain it.