Eagles in Illinois in October
Yes, October is a good month to see eagles in Illinois. It is the 6th busiest month of the year, with 1,828 of the 20,044 sightings logged across the year (9.1%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Good month for eagles in Illinois
9.1%
of yearly sightings
1,828
records in October
#6
busiest month of 12
20,044
verified records a year
September 7.8%, October 9.1%, November 9.3%. Busiest month is January at 11.2%.
20,044 verified observations of eagles in Illinois, recorded across 12 months of the year on iNaturalist.
When eagles are recorded in Illinois
Peak month
January
2,243 records (11.2% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 2,243 | 11.2% |
| Februarypeak | 2,167 | 10.8% |
| Marchpeak | 2,162 | 10.8% |
| April | 2,052 | 10.2% |
| May | 1,473 | 7.3% |
| June | 821 | 4.1% |
| July | 864 | 4.3% |
| August | 1,286 | 6.4% |
| September | 1,563 | 7.8% |
| October | 1,828 | 9.1% |
| November | 1,857 | 9.3% |
| December | 1,728 | 8.6% |
Eagles you are most likely to see
| Species | Verified observations |
|---|---|
| Red-tailed Hawk | 7,694 |
| Cooper's Hawk | 4,554 |
| Bald Eagle | 4,374 |
| Red-shouldered Hawk | 1,193 |
| Northern Harrier | 652 |
| Broad-winged Hawk | 377 |
| Sharp-shinned Hawk | 309 |
| Rough-legged Hawk | 288 |
In Illinois, October carries 9.1% of the year's eagles sightings, about 0.8 points above an even month-to-month split. That makes it the 6th busiest of the twelve months, out of 12 months with recorded activity.
Activity is rising from September (7.8%) into October, and it heads toward November (9.3%) after. The busiest month is January (11.2%), so if timing is flexible, that window is the safer bet.
The eagles most often recorded in Illinois are Red-tailed Hawk, Cooper's Hawk and Bald Eagle. Those counts are annual totals rather than a October split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in October itself.
Which eagles you are most likely to see
- Red-tailed Hawk7,694 records
- Cooper's Hawk4,554 records
- Bald Eagle4,374 records
- Red-shouldered Hawk1,193 records
- Northern Harrier652 records
- Broad-winged Hawk377 records
Plan your eagle trip in Illinois
Start with live tours near Lewis & Clark National Historic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Lewis & Clark National Historic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main eagle viewing area.
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Stay nearbyStay near Lewis & Clark National Historic Trail
Compare hotels, cabins and lodges close to the best eagle viewing area in Illinois.
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Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Gear to see them
Frequently asked questions
Can you see eagles in Illinois in October?+
Yes. October accounts for 1,828 of the 20,044 verified eagles sightings logged in Illinois across the year, which is 9.1% of the annual total.
Is October a good time to see eagles in Illinois?+
October is the 6th busiest month. It is workable, though January and February is the stronger window for a reliable sighting.
What month is best for eagles in Illinois?+
January is the single busiest month, with the broader peak running through January, February and March, based on 20,044 verified observations.
Which eagles are you most likely to see in Illinois?+
The most-recorded species in Illinois are Red-tailed Hawk, Cooper's Hawk and Bald Eagle, based on all-time iNaturalist counts.