Author Archives: hw7

Signs of Summer 5: Gray Tree Frogs

(Click here for a audio version of this blog) As April transitioned into May it had finally gotten warm enough in the evening for Deborah and I to sit out on our deck. Late spring is a great time of … Continue reading

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Signs of Summer 4: Interactions of Periodical Cicadas and Birds

(Click here to listen to an audio version of this blog!) Science starts, as I have written before, with observation. You then have to filter through the sometimes bewildering array of events that you are observing and try to focus … Continue reading

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Signs of Summer 3: Cavity Nesting Team (Year 5)!

(Click here to listen to an audio version of this blog!) Over the past five years I have written a number of articles and posts about our Cavity Nesting Team study up at Harrison Hills Park in northern Allegheny County. … Continue reading

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Signs of Summer 2: Three “First Birds”

(Click here to access an audio version of this blog!) I tried to keep a close eye on the arrival of the spring migrating birds this year. I thank all of the people who sent me emails about their “first … Continue reading

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Signs of Summer 1: Fireflies!

(Click here to listen to an audio version of this blog!) Several weeks ago Patrick over in Fawn Township noticed the first fireflies (also called “lightning bugs”) drifting about in his yard. Shortly after that, while taking our dog Izzy … Continue reading

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Signs of Spring 14: Yosemite (California, Part 3)

(Click here if you would like to listen to an audio version of this blog!) Yosemite Valley is located on the western slopes of the Sierra Nevada mountains of California. It is a tight walled, U-shaped space that contains some … Continue reading

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Signs of Spring 13: Giant Trees (California, Part 2)!

(Click here to listen to an audio version of this blog!) We drove up from Fresno into Kings Canyon National Park on snow covered roads. The trees in the surrounding woods were frosted with fresh snow and there was a … Continue reading

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Signs of Spring 12: California (part 1)

(Click here for an audio version of this blog!) California is an impossibly big and diverse place. Over its 900 miles of length there are a multitude of landscapes and habitat zones. Some of these are human dominated, and some … Continue reading

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Signs of Spring 11: Predators

(Click here to listen to an audio version of this blog!) The interaction of large carnivores with small and medium sized carnivores was explored in a wildlife population study conducted by Penn State University researchers (Penn State News, August 8, … Continue reading

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Signs of Spring 10: Bees and Herbicides and Pesticides, Bats and Viruses

(Click here to listen to an audio version of this blog!) Glyphosate is the active ingredient in the herbicide Roundup, and, not surprisingly, it is the most widely used herbicide in the world. Glyphosate functions by inhibiting the activity of … Continue reading

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