At Audubon , he championed the nationwide Important Bird Areas initiative in partnership with BirdLife International .
In 1996 , Gill became senior vice president and director of science for the National Audubon Society , a position from which he retired in 2004 .
At National Audubon Society , Gill championed the nationwide Important Bird Areas initiative in partnership with BirdLife International .
In 1996 , Gill became senior vice president and director of science for the National Audubon Society , a position from which he retired in 2004 .