Birdnote iconBirdnoteSep 21, 2026 ~1 min source read

Migrations: Molt Migration

At the end of summer, the once-bright feathers of a male American Goldfinch look ragged. Growing new flight feathers in a process called molting makes him more vulnerable to predators.

Migrations: Molt Migration

Share this story

Send the public story page.

Useful takeaways from this story.

At the end of summer, the once-bright feathers of a male American Goldfinch look ragged.

See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Growing new flight feathers in a process called molting makes him more vulnerable to predators.

Building the complete brief

The page is ready to read now. The fuller skim-friendly version will appear here automatically.

The useful part

At the end of summer, the once-bright feathers of a male American Goldfinch look ragged. Growing new flight feathers in a process called molting makes him more vulnerable to predators. Before migrating to wintering grounds, many songbirds stop at a secondary location to undergo the awkward phase of feather replacement.

How it works

  • See pcm.adswizz.com for information about our collection and use of personal data for advertising.
  • The places birds go to molt could be important targets for conservation efforts.

Details worth keeping

Sign up for BirdNote+ to get ad-free listening and other perks.

Keep reading in the app

Open the app view to save this story, compare related coverage, and continue from the same source.

Open in app