60-second Science
For Some Crows, Migration Is Optional
- Autor: Vários
- Narrador: Vários
- Editora: Podcast
- Duração: 0:02:33
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Sinopse
Crows are what's known as "partial migrants"—as cold weather approaches, some crows fly south whereas others stay put. And that behavior appears to be ingrained. Christopher Intagliata reports.
