Green Ridge Raptor Migration - Scheduled for 2022 

The 16th season of data collection of this volunteer based citizen science project is now scheduled.  ECAS's Green Ridge Fall Raptor Survey will have its first official weekend on Sept. 24th and 25th and will continue for the first three weekends of Oct.  The fourth weekend of the 22nd and 23rd will be optional depending on the weather and the count.  For the hard core hoping for Broadwing, Peter Low will be on site for the weekend of Sept. 17th and 18th.  We are looking forward to Portland Audubon's field trip on Oct. 8th. 

Whether you come up for an hour or stay for the day the views are great.  Green Ridge has been designated an Important Bird Area by Portland Audubon and many passerines move through as well. Contact David Vick at either (541-923-6943 or  if you would like to volunteer to help staff the site or have other questions.  

Although any passenger car can access the site the gravel portion of the route up to the site has not been graded in years and has sections of washboards and potholes so slow is the way to go.  The trail to the site is less than a 1/4 mile. We annually record up to 16 species of raptors and days of over 200 birds passing through are not uncommon with our highest count being 420 birds. You do not have to be an expert hawk identifier. If you can find the birds in the sky, you are a great help. We staff the site between 10:00 AM and 5:00 PM weather permitting, but you can stay only as long as you want. Volunteers join up with experienced surveyors and everyone carpools to the official location. No experience is required and it is great fun! Learn how to identify various hawks in flight. 

Along with scores of other hawk watch sites across North America our data is added to the HawkCount data base which is used in calculating Raptor Population Indexes.  Such information on population trends is crucial in conserving these magnificent birds of prey.

Here is the volunteer information with ECAS Fall Raptor Migration:

WHY: Raptors help us by acting as ecological barometers. They are sensitive indicators of changes in the ecosystems, not only within our country but across political borders. As do many predators, raptors play a critical role in maintaining ecosystem health. The yearly trends in data various hawk watch sites point out rises or declines in species numbers. This information is useful to biologists and conservationists. 
WHERE: Carpooling can take place at Indian Ford Campground near Sisters, Oregon.   The survey site is approximately 18 miles from Indian Ford Campground. Carpooling is strongly encouraged from the entrance to Indian Ford Campground, which is only 30 yards from the highway. Meet there at 9 for any carpooling options.

DIRECTIONS TO MEETING SITE: To reach Indian Ford Campground, Take Hwy 126/20 west out of Sisters following signs to Salem. Travel on this road about 5.5 miles. Indian Ford Campground is on the north side of the highway, and the parking lot is just 100 feet off of the highway after you turn.

SURVEY SITE LOCATION: For those who do not meet at Indian Ford CG, here are the directions to the Survey Site:

Take Hwy. 20 west of Sisters 6 miles (one mile east of Black Butte Ranch) to the Forest Rd.(FR) 11 Jct.  Go north on FR 11 for 10 miles to end of pavement. At the end of pavement bear left on FR 1150 for 7 miles.  Follow signs to Green Ridge Lookout.  Turn left on FR 1154 also follow lookout sign.  Go for 1 mile to FR 1140 jct.  also lookout sign Go left on FR 1140 for approximately 1/4 mile to 600 road jct. ( the first jct.)  Go right on 600 Rd. for approximately 1 mile.  There will be a small parking spot on the right next to the portapotty. If you go to the top of the ridge you have gone too far.  The trail to the site goes north for less than a 1/4 mile and is well marked with directional signs on weekends. 

Raptor species likely to be seen:

Bald Eagle; Golden Eagle; American Kestrel, Merlin, Peregrine Falcon, Sharp-shinned Hawk, Cooper's Hawk, Northern Goshawk, Red-tailed hawk,  Northern Harrier, Osprey, and (Turkey Vulture).  Prairie Falcon and Broad-winged Hawk have also been noted a few times.

East Cascades Audubon Society's 2021 Green Ridge Raptor Survey completed its 15th successful hawk watch season.  A total of 1,828 raptors representing 14 species were recorded in 74 hours of observation that averages an impressive 24.7 raptors per hour during 11 days of effort.  This is substantially higher than HawkWatch International's 1994 trial count conducted from the nearby Green Ridge Fire Lookout.  Detailed data can be accessed on the Hawk Migration Association of North America Raptor Migration Data Base at  On the human front, we had a total of 130 participants/visitors sharing in the fun.  Special thanks to our observer extrodinare Peter Low and to Judy Meredith, who were both present every day of the season, and to all of our frequent fliers.  ECAS thanks the Sisters Ranger District for continued support and Jim and Sue Anderson for inspiration.  

Raptors seen:

31    Osprey

141   Bald Eagle

6      Northern Harrier

617  Sharp-shinned Hawk

280  Cooper's Hawk

1       Northern Goshawk 

218  Red-tailed Hawk

1       Rough-legged Hawk

40    Golden Eagle

11     American Kestrel

81    Merlin

16    Peregrine Falcon

2      Prairie Falco

55   Unid. Accipiter 

5     Unid. Buteo

1      Unid. Falcon

18    Unid. Raptor

304 Turkey Vulture