North Carolina mammals

Common Bottlenose Dolphin in North Carolina

Tursiops truncatus

Native to North Carolina S5N Secure in North Carolina

Not listed as nonindigenous in North Carolina by USGS NAS; native to its North Carolina range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Common Bottlenose Dolphin in North Carolina, by the numbers

Common in North Carolina 30th most recorded of 125 mammals logged in North Carolina

2,339 occurrence records
1 with iNaturalist photos

Records from 2000–2026.

2,339 total records count every North Carolina occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 2,326 records with a full observation date.

When to look for the Common Bottlenose Dolphin in North Carolina

Most sightings fall in January to April.

2,326 North Carolina occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly North Carolina records (table)
MonthRecords
January251
February407
March356
April289
May242
June81
July58
August57
September71
October168
November180
December166

Monthly common bottlenose dolphin occurrence records (iNaturalist and GBIF) in North Carolina, 2000–2026.

Seasonality

Year-round in North Carolina, with recorded sightings peaking in January–April.

Occurrence map

Where Common Bottlenose Dolphin has been recorded in North Carolina

300 records mapped · zoom and drag to explore

185 North Carolina records mapped

Where it's recorded in North Carolina

CountyRecords
Dare County 534
Carteret County 287
Currituck County 67
Brunswick County 40
Onslow County 32
Pamlico County 27
Hyde County 17
New Hanover County 13
Craven County 10
Pender County 9
Columbus County 4
Beaufort County 3
9 other counties 1,296

The complete county distribution, spread across 21 North Carolina counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Unlike most dolphins and whales recorded in North Carolina, the common bottlenose dolphin does not stay offshore. Reports concentrate around Cape Hatteras and reach well into the Pamlico and Albemarle sound system near Alligator River National Wildlife Refuge because the species works both deep Gulf Stream water and the shallower estuaries behind the Outer Banks.

That dual habit shows up in how it feeds. Bottlenose dolphins here hunt fish and squid in open water but also push into sounds, inlets, and river mouths, sometimes herding fish against a shoreline or a mudflat to feed in a few feet of water. Coastal and estuarine populations along North Carolina are thought to behave somewhat differently from the animals that stay farther out over the continental shelf, tracking prey and water temperature rather than following one fixed range.

Records run through the year in North Carolina, with the heaviest reporting in January and February, May, and November. Those swings likely reflect seasonal shifts as animals move between nearshore sound habitat and the open Atlantic rather than any single migration.

Occurrence data from iNaturalist and GBIF.

More mammals in North Carolina in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries