Herons in Massachusetts in September

Yes, September is a good month to see herons in Massachusetts. It is the 6th busiest month of the year, with 2,013 of the 17,248 sightings logged across the year (11.7%), 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.

Western Grey Heron photographed in MassachusettsNortheastern Great Blue Heron photographed in MassachusettsGrey Heron photographed in Massachusetts
Photos by iNaturalist observers, used under Creative Commons.

Good month for herons in Massachusetts

11.7%

of yearly sightings

2,013

records in September

#6

busiest month of 12

17,248

verified records a year

August 14.9%, September 11.7%, October 6.5%. Busiest month is May at 15.8%.

Best months: May, August, June

17,248 verified observations of herons in Massachusetts, recorded across 12 months of the year on iNaturalist.

When herons are recorded in Massachusetts

Peak month

May

2,724 records (15.8% of the year)

Quietest month

February

211 records

MonthObservationsShare
January3091.8%
February2111.2%
March5263%
April2,27413.2%
Maypeak2,72415.8%
Junepeak2,53414.7%
July2,09612.2%
Augustpeak2,57114.9%
September2,01311.7%
October1,1146.5%
November5603.2%
December3161.8%

Herons you are most likely to see

SpeciesVerified observations
Great Blue Heron8,864
Great Egret3,164
Snowy Egret1,461
Green Heron1,386
Black-crowned Night Heron1,289
Yellow-crowned Night Heron347
Little Blue Heron192
American Bittern145

In Massachusetts, September carries 11.7% of the year's herons sightings, about 3.4 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 easing off from August (14.9%) into September, and it heads toward October (6.5%) after. The busiest month is May (15.8%), so if timing is flexible, that window is the safer bet.

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

Which herons you are most likely to see

  • Great Blue Heron8,864 records
  • Great Egret3,164 records
  • Snowy Egret1,461 records
  • Green Heron1,386 records
  • Black-crowned Night Heron1,289 records
  • Yellow-crowned Night Heron347 records
Plan your tripAppalachian National Scenic Trail

Plan your heron trip in Massachusetts

Start with live tours near Appalachian National Scenic Trail, 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 Massachusetts in September?+

Yes. September accounts for 2,013 of the 17,248 verified herons sightings logged in Massachusetts across the year, which is 11.7% of the annual total.

Is September a good time to see herons in Massachusetts?+

September 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 Massachusetts?+

May is the single busiest month, with the broader peak running through May, August and June, based on 17,248 verified observations.

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

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