Galapagos Species Checklist

Geospiza fuliginosa Gould, 1837

Pinzón tierrero pequeño, Small Ground Finch

Photo: CDF Archive.
Photo: CDF Archive.

Threats It is known to be affected by the parasitic fly Philornis downsi that causes heavy chick mortality, and by avian pox. Introduced rats are probably the second cause of mortality.

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Chordata

Class
Aves

Order
Passeriformes

Family
Thraupidae

Genus
Geospiza

Species
fuliginosa

Taxon category: Accepted

Status

Least concern

Ecology

Preference for an altitude zone in Galapagos: Coastal zonera - humid zone

Habitat preferences: Very common, especially in dry and transition zone but with the dispersal of many introduced grasses now breeding in all vegetation zones.

Feeding type: Polyphagous

Flowers, fruits, seeds and arthropods

Feeding preferences: Feeds on flowers (possible important pollen vector), fruits, seeds, arthropods, and has been observed to remove ticks from iguanas and from tortoises who extend their necks and legs for that purpose.

Trophic role: Omnivorous

Reproduction mode: Exclusively sexual

Reproductive biology: Male displays in front of a dome shape nest, often built in Opuntia cacti. Only females incubate (three to five eggs), both feed the chicks.

Distribution

Distribution map of specimen collection localities or observation records for this species in our collections database.

Distribution: The species is present on all islands except Genovesa (possibly due to competition with the G. acutirostris), Darwin and Wolf (G. septentrionalis).

References

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