4.2-Ounce Songbirds Make Marathon Migration

blackpoll warbler_wiki
“For 50 years, scientists have debated whether blackpoll warblers are able to make the marathon flight from New England to South America, or if the birds require breaks to complete the journey.”

See what happened when researches attached tiny backpack flight recorders to 40 blackpolls during their 2013 migration. Read it here.

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