Critically Endangered
Isabela Oriole
Oriolus isabellae
The Isabela oriole is a the oriole family endemic to Luzon in the Philippines.
Appearance
Yellow underparts blend into olive upperparts. Bill fairly long and silver. Similar to White-lored Oriole, but slightly larger, with a silver rather than red bill and no white spot in front of the eye.
Published measurements include mass about 46.
Range and habitat
The Isabela oriole is now confined to the lowland forests in the Northern Sierra Madre mountain range in Luzon. It is frequently seen in the canopy and middle storeys of forests and also forest edge or patches up to 440 masl. The Isabela oriole is a the oriole family endemic to Luzon in the Philippines.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Breeding believed to occur during April to June.
In crisis
This species was presumed to be extinct for many years until its rediscovery in December 1993 near Diffun, Quirino, and in Mansarong in September 1994. It is critically endangered with estimates of just 50 to 250 mature individuals remaining. It is threatened by habitat loss and hunting.
The Isabela oriole has a known population of about 50-250 mature individuals and is assessed as Critically Endangered based on its extremely small and fragmented population. Under the Philippine law RA9147, it is completely illegal to hunt these birds or to capture and keep them as pets.
Isabela Oriole is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Isabela Oriole, Wikidata item Q1585174. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



