to more than 220 bird species, for example, palm plantations support only about 14 resident species. Some 80% of Kalimantan's forests have been opened up to timber concessions, even in protected areas. Many highland forests fall into protected areas—including national parks and forest reserves—but such gazetting does not always guarantee true protection, with logging occurring even in those areas. Endemic Bird Areas Birdlife International defines Endemic Bird Areas (EBAs) as places where the breeding ranges of two or more range-restricted species—those with breeding ranges of less than —overlap. In order to qualify, the whole of the breeding range of at least two range-restricted species must fall entirely within the EBA. Borneo has one such area. The Bornean mountains EBA (157) comprises of mountain ranges in Borneo's interior, at an altitude above in elevation. These mountains are found in all three countries which share the island. Two of Borneo's three endemic genera are found here; only the Borneo bristlehead is found at lower elevations. In total, 31 range-restricted species occur within this EBA. BirdLife International has also designated five Secondary EBAs for Borneo: two smaller island groups and three areas on Borneo itself. Secondary EBAs are those which either include the breeding range of only a single range-restricted species, or those which cover only part of a range-restricted bird's breeding area. The North-east Bornean islands secondary area (s097) includes a number of small islands off the northern and eastern coasts of Borneo. The grey imperial pigeon, which the International Union for Conservation of Nature (IUCN) considers to be a vulnerable species, is found on a dozen or so of the islands; the near threatened, range-restricted Mantanani scops owl is more common and widespread on the small islands off Sabah. Both species also breed on small islands near the Philippines. Three designated Important Bird Areas (IBAs) fall within this area. The Sabah lowlands secondary area (s098) encompasses the lowlands of the Malaysian state of Sabah, at the northern end of Borneo. The breeding range of the white-fronted falconet, a near-threatened species, falls entirely within the area. Part of the breeding range of the white-crowned shama is also included. The secondary area includes eight designated IBAs. The Kalimantan lowlands secondary area (s099) encompasses the lowland forest thought to contain the breeding range of the black-browed babbler, a presumably threatened species recently rediscovered, more than 170 years after the only specimen was collected. There