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Wintering Criteria

 

Overwintering for a species requires that it be recorded once in December, once in January, and once in February of the same year for that latilong.  Such species are given a "W" for that latilong.  Winter visitors, and late fall stragglers and early spring arrivers, are given a "w" for the latilong.  Any record from December 1 to February 29 is considered a winter record ("w") 

 

WINTERING BY LATILONG

 

(The following information is based on he 2nd edition published in 1998)

 

 

The winter distribution totals ("W" or "w") for each latilong are summarized in this latilong map

 

127

155

20

160

38

5

66

35

44

100

102

19

60

68

8

20

184

86

103

32

120

105

79

122

141

126

166

74