How much bird is there, anyway?
10,000 Birds
JULY 21, 2011
But if you look at a bit of prairie in South Dakota during the dead of winter, you may see very few birds and a lot of bison. Here’s some data from the famous research project of Manu, Peru, giving biomass in kilograms per hectare. To remedy this, I visited the Animal Diversity Web site at the University of Michigan.
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