Monarchs only migrate by day. They rest in overnight roosts during fall migration. Our roost map reveals the flyways monarchs use on their way to Mexico. The map also shows the timing of peak migration.
E. McCormick
| Overnight Roost | ||
Monarchs only migrate by day. They rest in overnight roosts during fall migration. Our roost map reveals the flyways monarchs use on their way to Mexico. The map also shows the timing of peak migration.
E. McCormick
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