Why lists of worldwide bird species disagree
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Data gaps and species similarities may lead to undercounting biodiversity.
Read MoreData gaps and species similarities may lead to undercounting biodiversity.
Read MoreA 30-year study in Tanzania shows temperature-linked population declines in species important to forests.
Read MoreBirds are all around, and all you need to get started is an observant eye.
Read MoreMore observations and more focus on common birds could fill the data gap.
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