Sunday, February 23, 2020

Great Blue Heron

Here are a few photos taken over the past year of Great Blue Herons.  All are from the Nisqually National Wildlife Refuge.  Wetland pollution and draining has also threatened the species. Currently populations appear to be stabile, with increases in some areas, but decreases in others. (Vennesland, R. G. and R. W. Butler 2011).
Great Blue Heron plumes were prized by the millinery trade if the early 1900s. The species has more or less recovered from this decimation, although some studies conclude that populations were higher before the 1930s than they are now (see citatio above).

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