Herons in Wisconsin in April

Yes, April is a good month to see herons in Wisconsin. It is the 6th busiest month of the year, with 635 of the 6,239 sightings logged across the year (10.2%), 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 June 28, 2026.

Least Bittern photographed in WisconsinGreen Heron photographed in WisconsinAmerican Bittern photographed in Wisconsin
Photos by iNaturalist observers, used under Creative Commons.

Good month for herons in Wisconsin

10.2%

of yearly sightings

635

records in April

#6

busiest month of 12

6,239

verified records a year

March 1.8%, April 10.2%, May 18.5%. Busiest month is May at 18.5%.

Best months: May, August, JulyPeak season right now

6,239 verified observations of herons in Wisconsin, recorded across 12 months of the year on iNaturalist.

When herons are recorded in Wisconsin

Peak month

May

1,156 records (18.5% of the year)

Quietest month

February

7 records

MonthObservationsShare
January180.3%
February70.1%
March1151.8%
April63510.2%
Maypeak1,15618.5%
June1,03116.5%
Julypeak1,05216.9%
Augustpeak1,08317.4%
September75512.1%
October3064.9%
November701.1%
December110.2%

Herons you are most likely to see

SpeciesVerified observations
Great Blue Heron3,088
Green Heron1,288
Great Egret1,169
Black-crowned Night Heron316
American Bittern173
Least Bittern56
Yellow-crowned Night Heron49
Western Cattle-Egret36

In Wisconsin, April carries 10.2% of the year's herons sightings, about 1.9 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 March (1.8%) into April, and it heads toward May (18.5%) after. The busiest month is May (18.5%), so if timing is flexible, that window is the safer bet.

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

Which herons you are most likely to see

  • Great Blue Heron3,088 records
  • Green Heron1,288 records
  • Great Egret1,169 records
  • Black-crowned Night Heron316 records
  • American Bittern173 records
  • Least Bittern56 records
Plan your tripApostle Islands National Lakeshore

Plan your heron trip in Wisconsin

Start with live tours near Apostle Islands National Lakeshore, 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 Wisconsin in April?+

Yes. April accounts for 635 of the 6,239 verified herons sightings logged in Wisconsin across the year, which is 10.2% of the annual total.

Is April a good time to see herons in Wisconsin?+

April is the 6th busiest month. It is workable, though May and August is the stronger window for a reliable sighting.

What month is best for herons in Wisconsin?+

May is the single busiest month, with the broader peak running through May, August and July, based on 6,239 verified observations.

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

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