Herons in Iowa in June

Yes, June is a good month to see herons in Iowa. It is the 5th busiest month of the year, with 155 of the 1,173 sightings logged across the year (13.2%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.

Great Blue Heron photographed in IowaGreat Blue Heron photographed in IowaGreat Egret photographed in Iowa
Photos by iNaturalist observers, used under Creative Commons.

Good month for herons in Iowa

13.2%

of yearly sightings

155

records in June

#5

busiest month of 12

1,173

verified records a year

May 17.5%, June 13.2%, July 11.1%. Busiest month is May at 17.5%.

Best months: May, August, September

1,173 verified observations of herons in Iowa, recorded across 12 months of the year on iNaturalist.

When herons are recorded in Iowa

Peak month

May

205 records (17.5% of the year)

Quietest month

January

2 records

MonthObservationsShare
January20.2%
February50.4%
March393.3%
April17014.5%
Maypeak20517.5%
June15513.2%
July13011.1%
Augustpeak19716.8%
Septemberpeak18215.5%
October615.2%
November171.4%
December100.9%

Herons you are most likely to see

SpeciesVerified observations
Great Blue Heron674
Great Egret217
Green Heron172
Western Cattle-Egret21
American Bittern17
Least Bittern17
Black-crowned Night Heron13
Yellow-crowned Night Heron9

In Iowa, June carries 13.2% of the year's herons sightings, about 4.9 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity is easing off from May (17.5%) into June, and it heads toward July (11.1%) after. The busiest month is May (17.5%), so if timing is flexible, that window is the safer bet.

The herons most often recorded in Iowa are Great Blue Heron, Great Egret and Green Heron. Those counts are annual totals rather than a June split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in June itself.

Which herons you are most likely to see

  • Great Blue Heron674 records
  • Great Egret217 records
  • Green Heron172 records
  • Western Cattle-Egret21 records
  • American Bittern17 records
  • Least Bittern17 records
Plan your tripEffigy Mounds National Monument

Plan your heron trip in Iowa

Start with live tours near Effigy Mounds National Monument, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Gear to see them

Frequently asked questions

Can you see herons in Iowa in June?+

Yes. June accounts for 155 of the 1,173 verified herons sightings logged in Iowa across the year, which is 13.2% of the annual total.

Is June a good time to see herons in Iowa?+

June is the 5th busiest month. It is workable, though May and August is the stronger window for a reliable sighting.

What month is best for herons in Iowa?+

May is the single busiest month, with the broader peak running through May, August and September, based on 1,173 verified observations.

Which herons are you most likely to see in Iowa?+

The most-recorded species in Iowa are Great Blue Heron, Great Egret and Green Heron, based on all-time iNaturalist counts.