Tree Swallows Spend the Winter

Most swallow species that nest in North America eat almost nothing except flying insects. When the bugs die off in the fall, the swallows head south to winter in the tropical zones of Central and South America and the Caribbean. However, Tree Swallows can also eat small fruits. If Tree Swallows arrive in the north before the insects are out, they’ll supplement their diets with fruit, giving them a competitive advantage for limited nesting sites.

More info and transcript at BirdNote.org. 

Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 

BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.