Migration Count Fall 2022
Season Summary
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.
Display
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 9th to December 31st
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
Migration Count Fall 2022
Since 1972, Hawk Ridge counters have been documenting the fall bird migration at Hawk Ridge Nature Reserve in Duluth, MN. An average of 75,000 raptors and 200,000+ other birds are counted each season. Hawk Ridge Bird Observatory staff and volunteers provide education for visitors September 1 - October 31. More information can be found at hawkridge.org.
Directions
The Hawk Ridge Nature Reserve main overlook is located at approximately 3980 E Skyline Pkwy in Duluth, MN. It is fully accessible by car June 1 - November 30. Directions can also be found at hawkridge.org.
Hawk Ridge Bird Observatory
The mission of the Hawk Ridge Bird Observatory is to protect birds of prey and other migratory birds in the Western Lake Superior Region through research, education, and stewardship.
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.