The shape of the curve on the graphic in the above article is very intriguing 
to me. It starts with a steep decline in the first couple of decades and 
plateaued toward the last few years. 
The curve suggests that more than 75% of birds losses happened in the first 25 
years (betwween 1970 and 1995) and less than 25% of the losses took place in 
the last 25 years(from 1995 to present). 
The fact that habitat loss, climate changes and other adverse environmental 
changes are worse in the last 25 years compared to the previous period suggests 
other factors are at play to slow down the decline of the total population. 
Does anyone have any explanation for this contradiction?

Sent using Zoho Mail

 ---- On Fri, 20 Sep 2019 07:18:43 -0400 Anne Swaim <> wrote 
 > The unformatted PDF version of the study is now openly linked on Cornell 
 > Lab's website 
 > here:
 >  also linked from accompanying Living Birds article 
 > here:
 > Anne SwaimSaw Mill River
 > On Thu, Sep 19, 2019 at 9:29 PM Anne Swaim <> wrote:
 > Further on this topic: someone just passed along a PDF of full text of the 
 > study. 
 > Reply off list, if a copy would be of interest.
 > Anne SwaimSaw Mill River
 >                      --                                      NYSbirds-L List 
 > Info:                                   Welcome and Basics                   
 >                    Rules and Information                                   
 > Subscribe, Configuration and Leave                                      
 > Archives:                                       The Mail Archive             
 >                            Surfbirds                                       
 > ABA                                     Please submit your observations to 
 > eBird!                                       --


NYSbirds-L List Info:


Please submit your observations to eBird:


Reply via email to