lunedì 8 febbraio 2016

NYT Science: Experience Science: Count Birds From Your Backyard

Experience Science: Count Birds From Your Backyard
By NICHOLAS ST. FLEUR

Thousands of bird-watchers are expected to join the Great Backyard Bird Count, an annual avian census used to create a massive online database.

Published: February 9, 2016 at 06:00AM

via NYT Science http://ift.tt/1O04Br2