Herons in California in May

Yes, May is a good month to see herons in California. It is the 4th busiest month of the year, with 21,870 of the 251,625 sightings logged across the year (8.7%), 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.

Black-crowned Night Heron photographed in CaliforniaGreat Blue Heron photographed in CaliforniaBlack-crowned Night Heron photographed in California
Photos by iNaturalist observers, used under Creative Commons.

Good month for herons in California

8.7%

of yearly sightings

21,870

records in May

#4

busiest month of 12

251,625

verified records a year

April 9.9%, May 8.7%, June 8.6%. Busiest month is April at 9.9%.

Best months: April, January, December

251,625 verified observations of herons in California, recorded across 12 months of the year on iNaturalist.

When herons are recorded in California

Peak month

April

24,885 records (9.9% of the year)

Quietest month

July

17,723 records

MonthObservationsShare
Januarypeak24,1279.6%
February20,8468.3%
March20,3158.1%
Aprilpeak24,8859.9%
May21,8708.7%
June21,5578.6%
July17,7237%
August17,8727.1%
September19,3947.7%
October19,2157.6%
November21,2948.5%
Decemberpeak22,5279%

Herons you are most likely to see

SpeciesVerified observations
Great Blue Heron62,712
Snowy Egret56,754
Great Egret55,009
Black-crowned Night Heron47,285
Green Heron12,835
Yellow-crowned Night Heron5,590
Reddish Egret2,935
Little Blue Heron2,510

In California, May carries 8.7% of the year's herons sightings, about 0.4 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 12 months with recorded activity.

Activity is easing off from April (9.9%) into May, and it heads toward June (8.6%) after. The busiest month is April (9.9%), so if timing is flexible, that window is the safer bet.

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

Which herons you are most likely to see

  • Great Blue Heron62,712 records
  • Snowy Egret56,754 records
  • Great Egret55,009 records
  • Black-crowned Night Heron47,285 records
  • Green Heron12,835 records
  • Yellow-crowned Night Heron5,590 records
Plan your tripAlcatraz Island

Plan your heron trip in California

Start with live tours near Alcatraz Island, 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 California in May?+

Yes. May accounts for 21,870 of the 251,625 verified herons sightings logged in California across the year, which is 8.7% of the annual total.

Is May a good time to see herons in California?+

May is the 4th busiest month. It is workable, though April and January is the stronger window for a reliable sighting.

What month is best for herons in California?+

April is the single busiest month, with the broader peak running through April, January and December, based on 251,625 verified observations.

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

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