Tree Swallows are early spring migrants that are on their way back north right now. Have you seen your first one yet? These cool eBird animated maps show where Tree Swallows are each week of the year! Where are they right now? Tap the link to see our best estimate with eBird Status and Trends maps: https://science.ebird.org/en/status-and-trends/species/treswa/abundance-map-weekly?week=12 We'll be spotlighting a few migratory birds as they continue their journeys this season. Is there one you'd r
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Tree Swallows are early spring migrants that are on their way bac…
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FacebookCornell Lab of Ornithology
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