Monthly Archives: July 2018

(Click here for an audio version of this blog!) Over the past month I have seen a number of monarch butterflies (Danaus plexippus) both around my house and up at Harrison Hills Park. The fields at Harrison Hills are loaded … Continue reading →

(Click to access an audio version of this blog!) Amphibians are the oldest group of terrestrial vertebrates. They arose during the Devonian Period of the Paleozoic Era some 370 million years ago and are the evolutionary forerunners of all of … Continue reading →

Click to access an audio version of this blog! Over the past four years I have written a number of articles about our Cavity Nesting Team study up at Harrison Hills Park in northern Allegheny County. This year we have … Continue reading →

(Click to access an audio version of this blog) The relationship between insects and humans is complicated. Many people initially react to the word “insect” with the image of household vermin, or a biting/stinging nuisance, or a disease transmitting vector, … Continue reading →