Re: LINKS - Re: [nysbirds-l] News Alert: North America has lost 29% of its birds since 1970, study finds. Experts blame habitat loss, pesticides, light pollution and cats.

Thank you Christopher for the links. I agree that the curve on your link is compressed horizontally but it shows the same pattern I described before. Even the curve of each specific habitat is showing this pattern. Look at (fig 1, A and B) on page 12 from the full study and you will see that

Re: LINKS - Re: [nysbirds-l] News Alert: North America has lost 29% of its birds since 1970, study finds. Experts blame habitat loss, pesticides, light pollution and cats.

Thank you Christopher for the links. I agree that the curve on your link is compressed horizontally but it shows the same pattern I described before. Even the curve of each specific habitat is showing this pattern. Look at (fig 1, A and B) on page 12 from the full study and you will see that