Black and White Warbler photo by Barry the Birder
"Birds are an ecological litmus paper"
Wikipedia has just reported that "Out of approximately 11,154 known bird species 159 (1.4%) have become extinct, 226 (2%) are critically endangered, 461 (4.1) are endangered, 800 (7.2%) are vulnerable and 108 (9.1%) are near threatened". There is a general consensus among scientists who study the trends that if human impact on the environment continues as it has, one-third of all bird species and an even greater proportion of bird populations will be gone by the end of this century".
Please comment if you wish.
BarrytheBirder
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