Evidence found
1,967 records across 10 countries and territories, 1877–2026.
Molothrus aeneus · GBIF taxon key 2484404
Where has the Bronzed Cowbird been recorded?
Molothrus aeneus occurrence evidence comes from 1,967 records in 10 countries and territories, from 1877 to 2026. Most records come from Mexico.
- 1,967 records
- 10 places
- 130 years recorded
- Aves class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-08-23. 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.
11 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
18772026
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where Bronzed Cowbird has been recorded
The countries below show where occurrence evidence exists for Bronzed Cowbird. 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 |
|---|---|---|
| Mexico | 1,050 | |
| United States | 772 | |
| Colombia | 51 | |
| El Salvador | 32 | |
| Costa Rica | 28 | |
| Honduras | 15 | |
| Guatemala | 13 | |
| Nicaragua | 3 | |
| Belize | 2 | |
| Panama | 1 |
Related animals
Others in the family Icteridae.
Red-winged Blackbird
171,430 records
Common Grackle
86,280 records
Brown-headed Cowbird
81,651 records
Baltimore Oriole
26,550 records
Great-tailed Grackle
14,519 records
Orchard Oriole
9,906 records
Shiny Cowbird
5,178 records
Hooded Oriole
3,181 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.