Evidence found
645 records across 31 countries and territories, 1886–2026.
Sula dactylatra · GBIF taxon key 2480967
Where has the Masked been recorded?
Sula dactylatra occurrence evidence comes from 645 records in 31 countries and territories, from 1886 to 2026. Most records come from United States.
- 645 records
- 31 places
- 90 years recorded
- Aves class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-23. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: May.
12 months reach at least 10% of the peak facet count.
What this does not mean
repeated describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: May. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Records over time
18862026
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where Masked has been recorded
The countries below show where occurrence evidence exists for Masked. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
| Place | Records | Share |
|---|---|---|
| United States | 177 | |
| Colombia | 112 | |
| United States Minor Outlying Islands | 57 | |
| Brazil | 56 | |
| Mexico | 28 | |
| Saint Helena | 23 | |
| Norfolk Island | 15 | |
| Australia | 14 | |
| Oman | 11 | |
| ZZ | 11 | |
| Costa Rica | 10 | |
| Kiribati | 7 | |
| Japan | 6 | |
| Chile | 4 | |
| France | 4 | |
| Venezuela | 4 | |
| Ecuador | 3 | |
| Samoa | 3 | |
| Bahamas | 2 | |
| New Zealand | 2 | |
| Anguilla | 1 | |
| United Kingdom | 1 | |
| Montserrat | 1 | |
| Malaysia | 1 | |
| New Caledonia | 1 | |
| Nicaragua | 1 | |
| PN | 1 | |
| Seychelles | 1 | |
| El Salvador | 1 | |
| French Southern Territories | 1 | |
| Taiwan | 1 |
Related animals
Others in the family Sulidae.
Northern Gannet
123,943 records
Brown Booby
1,460 records
Red-footed Booby
1,041 records
Blue-footed Booby
628 records
Australasian Gannet
339 records
Peruvian Booby
96 records
Abbott's Booby
54 records
Cape Gannet
40 records
Record pattern: repeated
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.