Medium Tree Finch
Camarhynchus pauper
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Medium_tree_finch
Taxonomy & Classification
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Passeriformes
Family
Thraupidae
Genus
Camarhynchus
Medium Tree Finch belongs to the family Thraupidae, order Passeriformes, within the Aves class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
The Medium Tree Finch faces severe threats primarily from invasive parasites, habitat degradation, and extremely limited range. The species is critically endangered due to the devastating impact of the introduced parasitic fly Philornis downsi, which kills nestlings, combined with habitat loss from invasive plant species and human activities on its restricted range in the Galápagos Islands.
Key Facts
Habitat & Distribution
Endemic to Floreana Island in the Galápagos archipelago, inhabiting humid highland forests and woodland areas with native vegetation including Scalesia trees and other endemic plant species. The species requires dense canopy cover and is restricted to the remaining patches of native forest habitat on the island.
Threats
IUCN Red List: Critically Endangered
The Medium Tree Finch faces severe threats primarily from invasive parasites, habitat degradation, and extremely limited range. The species is critically endangered due to the devastating impact of the introduced parasitic fly Philornis downsi, which kills nestlings, combined with habitat loss from invasive plant species and human activities on its restricted range in the Galápagos Islands.
Extremely limited geographic range
Habitat degradation from invasive plant species
Invasive parasitic fly (Philornis downsi)
Climate change impacts on island ecosystems
Human disturbance and development
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Medium Tree Finch (Camarhynchus pauper). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/medium-tree-finch