Todd Arnold

University of Minnesota

Guest

Professor of Fisheries, Wildlife, and Conservation Biology at the University of Minnesota.

Todd Arnold on KCRW

In a recent    study   , scientists estimate that the North American bird population has dropped by roughly 29% since the 1970s. That’s nearly three billion birds.

Bird extinction? Scientists say headlines are overblown

In a recent study , scientists estimate that the North American bird population has dropped by roughly 29% since the 1970s. That’s nearly three billion birds.

from Press Play with Madeleine Brand

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