| http://www.w3.org/ns/prov#value | - The count period is long enough and generally cold enough so that the difference in ice cover on freshwater ponds and coastal estuaries and general snow cover is markedly different at the end of the period than it was at the beginning.Sadly, bird mortality is a reality and a big part of winter in this region.The longer and colder it gets the harder it is for overwintering birds, particularly land
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