There may be a Peregrine Falcon nesting site adjacent to I-89 just  
north of Winooski, about where the speed limit changes from 55 to 65.  
April 17th at this spot I observed an adult Peregrine Falcon diving on  
and pursuing a Common Raven. This morning ~8:45 am in a prominent lone  
white pine just west of the highway a raptor with white facial  
markings appeared to be plucking and eating prey in this tree. My son  
(passenger) had a better look than I did and identifies it as a PEFA.  
The rock quarry west of the interstate would appear to offer suitable  
nesting habitat. Drive safely, but keep an eye out as you pass through  
the area!   -  Russ