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Pictures | Mon Mar 18, 2019 | 1:10pm EDT

Journey of the painted lady butterfly

A swarm of painted lady butterflies lands on a Carolina cherry tree as they migrate north from Mexico through Encinitas, California, March 14, 2019. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree as they migrate north from Mexico through Encinitas, California, March 14, 2019. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree as they migrate north from Mexico through Encinitas, California, March 14, 2019. REUTERS/Mike Blake
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A painted lady butterfly lands on a Carolina cherry tree. REUTERS/Mike Blake

A painted lady butterfly lands on a Carolina cherry tree. REUTERS/Mike Blake

A painted lady butterfly lands on a Carolina cherry tree. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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A monarch butterfly encounters a bee as it flies with a swarm of painted lady butterflies making their way north from Mexico. REUTERS/Mike Blake

A monarch butterfly encounters a bee as it flies with a swarm of painted lady butterflies making their way north from Mexico. REUTERS/Mike Blake

A monarch butterfly encounters a bee as it flies with a swarm of painted lady butterflies making their way north from Mexico. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake

A swarm of painted lady butterflies lands on a Carolina cherry tree. REUTERS/Mike Blake
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