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Quaker Ridge Hawk Watch 2023

Species Composition

Species composition changes over time depending on weather, seasons, and many other factors. This chart displays the composition over a time period you select.

Click on pie pieces to see more detail. If there are more than seven species, click on "Other" to see a breakdown of the rest.


Many sites have a protocol that is designed to maximize finding particular species. If you select "Focus Species," only these species will be shown.

Date Selector

The control box below the pie chart lets you select a date period for the chart.

You can push the buttons "1d," "1w," or "1m" to zoom the graph to 1 day, 1 week, or 1 month.

The graph shows the overall volume seen on each day. You can drag the sliders on each side of this graph to adjust the start and end dates.

Species Composition
August 12th to December 31st

Drag the Sliders Below to Change the Dates Shown

Hourly Data

The time shown in the top row is the start of the one hour period.

Select Day

Choose a date to load the hourly table for that day. Only days that have data are shown.

Daily Counts

These charts show which species are most numerous at different parts of the season. Hover your mouse over a chart to see the number for a given day. The right column shows season totals and the left side shows the maximum for a single day. Each graph is scaled so that the single-day maximum is the highest point on the chart.

Sort By
  • Focus Species: Show the highest priority species at the top of the list.
  • Taxonomic Order: Sort the species by their scientific classification.
  • Alphabetic Order: Sort the species by their common name.
  • Abundance: Sort the species with the largest number counted at the top.

Daily Counts

Black Vulture
Turkey Vulture
Golden Eagle
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Accipiter sp.
Show More Species

Site Weather

Quaker Ridge Hawk Watch 2023

Each fall, thousands of hawks, eagles, and falcons migrate over the Quaker Ridge Hawk Watch site, which is located at Audubon Center in Greenwich at our Main Sanctuary property. Quaker Ridge is one of the highest points in Greenwich and is an excellent vantage point for spotting raptors coming from the north. The migration peaks often occur in mid-September on days when the winds are from the north. Sometimes hawk watchers spot several thousand Broad-winged Hawks in a single day.


Take the Merritt Parkway to Round Hill Road (Exit 28) and proceed north. After about 1.6 miles (look for a church), turn left onto John St. Proceed about 1.1 miles. The entrance to the Audubon Center is on the right at the intersection of John St. and Riversville Rd. Ample parking is to be found on your right a short distance in, with the watch on the lawn to the left.

About the Data

All data displayed on this site are preliminary and have not yet undergone quality control. Written permission is required to use the data.