Bird Challenge (Bird Identification And Tally)
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下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214586165-SCIOPS.html
下载链接
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资源简介：
Students record birds sighted during the last weekend in May and
combine their results in whole school tallies, which are compared to results
across Canada.
SEEDS estimates that we have reached literally millions of Canadian students
and their families during the past 30 years.
提供机构：
SCIOPS
