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Forster's Tern

Sterna forsteri · Gulls, Terns, and Skimmers

Forster's Tern (Sterna forsteri)
(c) Bert Filemyr, some rights reserved (CC BY-NC), uploaded by Bert Filemyr · CC BY-NC · via iNaturalist

Forster's Tern (Sterna forsteri) is in the Gulls, Terns, and Skimmers family (Laridae). Across the U.S., iNaturalist users have logged 29,340 research-grade observations of it in our sample, peaking in April.

Seasonal pattern in the national data: year-round resident. Counts also reflect when people are out photographing, so compare months within a state rather than across states.

When to photograph Forster's Tern: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Forster's Tern

The Forster's tern (Sterna forsteri) is a tern in the family Laridae. The genus name Sterna is derived from Old English "stearn", "tern", and forsteri commemorates the naturalist Johann Reinhold Forster.From Wikipedia via iNaturalist — article, CC BY-SA.

Forster's Tern by state

StateObservationsPeak monthMain season
California10,159AprilApr–Sep
Texas4,748AprilSep–May
Florida2,927JanuaryDec–Mar
New Jersey1,487MayApr–Oct
New York875AugustApr–Sep
Maryland848AugustJul–Oct
South Carolina818MarchNov–Apr
Virginia814MayMar–Jan
Delaware688AugustApr–Sep
North Carolina638AprilJul–May
Louisiana572AprilMar–Apr
Utah478MayMay–Jun
Alabama392OctoberAug–Apr
Massachusetts358SeptemberAug–Oct
Georgia287JanuarySep–Apr
Illinois241MayMay–May
Mississippi213AprilMar–Apr
Ohio212MayApr–May
Oregon186MayApr–Aug
Wisconsin180MayApr–Jun
Michigan178MayApr–Sep
Washington173AugustApr–Sep
Oklahoma171AprilApr–May
Minnesota157MayApr–May
Kansas150AprilApr–May
Colorado132MayApr–Jun
South Dakota120MayApr–May
Tennessee117MayApr–May
Idaho109MayMay–Sep
Montana109MayMay–Jul
Nebraska105MayApr–May
Arizona89AugustJul–Sep
Pennsylvania84AprilApr–May
North Dakota81MayMay–Jul
Arkansas70AugustJul–Sep
Missouri58MayApr–May
Indiana49MayApr–May
New Mexico49SeptemberAug–Sep
Connecticut42AugustAug–Aug
Nevada32JuneMay–Jul
Wyoming31JuneMay–Aug
Iowa29MayApr–May
Kentucky24SeptemberAug–Sep
Rhode Island22AugustAug–Sep
Maine20AugustAug–Sep
West Virginia12AprilApr–May

Main season = months with at least 30% of the state's peak-month count.

Related birds (Gulls, Terns, and Skimmers)

Photography tips

  • Use a fast shutter (1/2000 s or faster) for birds in flight.
  • Focus on the eye and shoot at the bird's eye level.
  • Approach slowly and stop if the bird changes behavior; never bait or flush birds.
  • Morning activity peaks in the first two hours after sunrise.

FAQ

When is the best time to photograph Forster's Tern?
Nationally, April has the most observations, with the main season from March to February.
Where is Forster's Tern most often seen?
The most observations come from California, Texas, Florida.