Ian Stewart

The Calming Power of Nature

Ian Stewart, Ornithologist The need to reduce the spread of the coronavirus has led to these strange and uncertain times. Out of an abundance of caution our programs are temporarily cancelled and our buildings are closed. However, our trails remain open for you to enjoy at Ashland Nature Center in Hockessin, Abbott’s Mill Nature Center …

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Rare American chestnut discovered at Coverdale Farm Preserve

Ian Stewart, Matt Bailey and Joe Sebastiani Last week an accidental discovery brought the Delaware Nature Society a link with a past that few of us had known. Bret Lanan, a knowledgeable deer hunter exploring an obscure corner of our Coverdale Farm Preserve in Greenville alerted Dave Pro, the DNS Land Steward, to what he …

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Birds in decline: a wake-up call for the continent

Ian Stewart A major analysis published last week (Rosenberg et al. 2019, Science, downloadable by scrolling down here) makes depressing reading for anyone interested in birds or in nature in general. A team of leading North American researchers analyzed almost 50 years of data from multiple sources and calculated that about 3 billion birds (= …

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