Results of the 2011 Halton Hills Christmas Count

The 21st annual Christmas Bird Count for Halton Hills was held on December 27, 2011. The weather that day was marked by a fairly constant snowfall that restricted viewing of birds and generally made for a dull day with temperatures just above the freezing mark. The results for the 2011 Count are summarized in the attached table. For comparison, the average and high numbers recorded for the previous 20 years are also included in the table. The total number of species … Continue Reading ››

Giant Swallowtails and Climate Change

Recently, one of the items covered by the news media was the change in distribution of various species owing to climate change. There are other causes for expansions of populations other than climate shifts but this discussion is limited to the global warming phenomenon. The media accounts included the recent appearance of fish species in the ocean much further north than where they normally occur. One species that was mentioned that has relevance to our own area was the Giant … Continue Reading ››

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