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Who saw the strongest migration?
Each of the observers below saw migrating monarchs. Where was the migration the strongest? Calculate the migration rate in monarchs per hour to find out.
Comments from Observers Migration Rate

"Our 4th grade sat outside for 30 minutes today and counted 20 monarchs. They were flying low and going south."
September 27, 2011: Happy Hollow Elementary, Fayetteville, Arkansas


"Today, I took my class on the Blueridge Parkway near milepost 292 to observe the Monarch migration. On the other side of the road was a field covered with goldenrod and asters. We saw 37 Monarchs in a span of 1 hour flying in a southwest direction."
September 28, 2011: Boone, North Carolina


"We laid out by our school garden and saw 12 butterflies gliding overhead on their way to Mexico. Our observation time was 10 minutes." September 22, 2011: Greater Summit City ELC, Akron, Ohio

"We were citizen scientists this afternoon. We observed for 10 minutes and saw 3 monarchs flying south."
September 27, 2011: Greater Summit City ELC, Akron, Ohio

"I saw 6 Monarchs today during a short time outside (20 minutes) on the Appalachian State University campus. All were flying steadily towards the south. I've hardly seen any Monarch this summer so this was a special treat!
September 27, 2011: Boone, North Carolina


"In just 15 minutes, I counted 195 monarchs all travelling southwest in groups of 2-8."
September 25, 2011: Toronto, Ontario


"Thirty monarch butterflies were sighted in 1 hour and 15 minutes. All were flying approximately 30 feet high in a south westerly direction just off the shore of Lake Erie."
September 26, 2011: Ripley, New York