Monthly Archives: May 2020

Signs of Spring 13: More on Butterflies (Evolution, Poisons, Rearing)

(Click here to listen to an audio version of this blog!) The evolution of moths and butterflies (the “lepidoptera”) is a topic that is constantly being revised as new evidence is found. It was once widely assumed, for example, that … Continue reading

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Signs of Spring 12: Monarch Update!

(Click here to listen to an audio version of this blog!) Monarch butterflies had a good year in eastern North America in 2018-2019. As I wrote in Signs of Summer 8 (July 25, 2018) the meadows at Harrison Hills Park … Continue reading

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Signs of Spring 11: Fledglings and Adolescence

(Click here to listen to an audio version of this blog!) The bluebirds at Harrison Hills Park are just starting to hatch their first round of nestlings. In two weeks, after an intense period of parental feeding and nurturing, these … Continue reading

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Signs of Spring 10: The Eastern Screech Owl!

(Click here to listen to an audio version of this blog!) One of the great benefits of warmer weather is sleeping with the windows open. The sounds of the night (at least out here in semi-rural Pennsylvania) are usually quite … Continue reading

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