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Ring-billed Gulls

Fewer than you think

 

Dr. Chip Weseloh is a wildlife biologist and an expert in waterbird colonies.  His 5o years of research focuses on "indicators species" (those at the top of the food chain) as a means of studying the health of the Great Lakes. Bird surveys are critical to understanding the state of the environment. I joined his team as they collected data on bird, nest. and egg counts.  
So how does one count 7,540 gulls, 3,770 nests and  11,320 eggs?  
Well, it's complicated.....

    

 

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