Justification of Red List Category
This species has an extremely small, severely fragmented population that is likely to be undergoing a continuing decline owing to forest loss on the two islands where it occurs. For these reasons, it is listed as Critically Endangered.
The population is estimated to number 50-249 mature individuals, based on the assessment by BirdLife International (2001) that it seems unlikely that there are more than a few hundred individuals... on each island [Panay and Negros], and there may only be a few tens. This estimate equates to 75-374 individuals in total, rounded here to 70-400 individuals.
During the 20th century extensive forest loss occurred throughout the species range. On Negros, it was fairly common in the 19th century but had become extremely rare by the 1930s (Baptista et al. 2018). However, recent deforestation rates (2000-2012) are in the order of 0.11% annually within the species range (based on Global Forest Watch data [Hansen et al. 2013]), which approximates to 2.2% loss over three generations (c.20 years). Hence declines due to habitat loss are likely to have slowed, but the impact of hunting, including for the live bird trade, is likely to be driving declines substantially above this rate.
Gallicolumba keayi is endemic to the Philippines, where it occurs on Panay and Negros (Collar et al. 1999). On Panay it has been observed regularly in the Northwest Panay Peninsula Natural Park in recent years including breeding records (Slade et al. 2005). On Negros, it was fairly common in the 19th century, but had become extremely rare by the 1930s. Since 1980, it was recorded at just one locality (above Mambucal), despite several weeks of surveys, with unconfirmed local reports from six additional localities. Recent research identified a few small populations in southern Negros (Cariño et al. 2007), but it may now be extinct in the north (J. Hornbuckle in litt. 2005, P. Hospodarsky in litt. 2010). It seems unlikely that more than a few hundred individuals remain on each island, although as Panay retains more forest cover, it is likely that this population is larger (P. Hospodarsky in litt. 2010).
This predominantly terrestrial species appears to prefer dense closed-canopy forests from 300-1,000 m, exceptionally to 1,200 m, although reports suggests it tolerates secondary habitats on Panay where it has been recorded from selectively logged forest on limestone, and from open and severely degraded forest with few large trees (Slade et al. 2005, A. Bucol in litt. 2007). It seems unlikely that it undertakes more than very local movements in response to food patchiness. It has been recorded nesting in March - June with chicks fledging after only 12 days, apparently as an adaptation to the vulnerability of their open and low nests in epiphytic ferns (Slade et al. 2005, Cariño et al. 2007). It has also been recorded nesting in March (Curio 2001). Nests appear to be regularly predated (Slade et al. 2005). The species predominantly feeds on plant material, although there is some potential evidence to suggest that they may also occasionally feed on ground invertebrates (Cariño et al. 2007).
Primary forests have been almost totally destroyed on Negros (where just 4% of any type of forest cover remained in 1988) and Panay (where 8% remained). Habitat degradation, through clearance for agriculture, timber and charcoal-burning, continues to pose a serious threat to remaining fragments. Secondary forest appears to be unsuitable for the species; it is not found in one of the only remaining areas of secondary forest on Negros (Baptista et al. 2015). Trapping and hunting for food and, presumably, for the cage-bird trade constitute other threats. In 2005, five birds were killed by poachers in Negros (J. Hornbuckle in litt. 2005). A number of nests have been depredated, although it is unknown whether this is by native or introduced predators.
Conservation Actions Underway
Recent records come from Mt Canlaon Natural Park, Mantikil, and in the Calinawan Community-based wildlife sanctuary on Negros (A. Bucol in litt. 2007). Local reports also derive from the North Negros Forest Reserve, and the Mt Talinis/Twin Lakes on Negros has also received funding for conservation actions (A. Bucol in litt. 2007). In the mid-1990s, the species featured on a bilingual environmental awareness poster as part of the Only in the Philippines series, and also featured in a public awareness caravan through Negros in November 2005-November 2006 (Cariño et al. 2007). It was used also as main logo in a photo exhibit Wet and Wild held at the Provincial Convention Center, Oriental Negros in November 2007 (A. Bucol in litt. 2007). It has been studied as part of the Philippine Endemic Species Project (PhilConserve) (Slade et al. 2005). The North Negros Forest Natural Park was declared by Presidential Decree in 2006. Efforts are ongoing to strengthen protected area management and involve the Negros Forests and Ecological Foundation, Inc. (NFEFI) and Silliman University - Angelo King Center for Research and Environmental Management (SUAKCREM) as well as other existing local non-government organisations and people's organisations in the protection of the species. It was bred for the first time in captivity in 2007 at the Center for Tropical Conservation Studies, Philippines (H. Roberts in litt. 2009), and a very small number of captive individuals have been bred since 2007 (Hirschfeld 2008). As of 2013, the captive population totals 18 individuals, 14 of which have been bred from birds confiscated from the illegal bird trade (Justo 2013). Captive breeding is being undertaken by the Talarak Foundation supported by the Philippines Biodiversity Conservation Foundation, and there are plans for future re-introductions (P. Hospodarsky in litt. 2010).
Conservation Actions Proposed
Conduct fieldwork in all areas from which the species has been locally reported and all other sites where suitable habitat remains, including the Bulabong Puti-an National Park. Provide immediate effective protection for the North Negros Forest Reserve. Encourage careful reforestation activities around remaining forests and law enforcement to reduce illegal logging. Utilise education and awareness campaigns to aid the conservation of this species, including encouraging people not to hunt the species and to aid the regeneration of food plants (Cariño et al. 2007).
30 cm. Medium-sized, short-tailed, ground-dwelling pigeon. Blood-red, narrow central patch to otherwise white throat and breast. Iridescent green crown, nape, lesser wing-coverts, upper mantle and breast-sides (forming an incomplete breast-band). Dark chestnut rest of upperparts, glossed deep reddish-purple, with broad greyish-white band across inner wing-coverts. Buff belly merging into creamy-white vent and undertail-coverts. Voice. Two monosyllabic hu calls, sometimes huhu call inserted into bouts of song. The songs consist of trills of rapidly repeated syllables. It can also be distinguished from other doves e.g. Emerald Dove and White-eared Brown Dove by its soft coo and a high-pitched uu-oom (Curio 2001). Hints Feeds on the forest floor. Shy, tends to run from danger, typically only flying short distances when flushed. Male utters long-distance territorial calls before and after being flushed by humans (Curio 2001).
Text account compilers
Westrip, J., Martin, R., Butchart, S., Bird, J., Calvert, R., Lowen, J., Symes, A., Taylor, J., Benstead, P., Ashpole, J
Bucol, A., Hospodarsky, P., Hornbuckle, J., Carino, A.
BirdLife International (2019) Species factsheet: Gallicolumba keayi. Downloaded from http://www.birdlife.org on 17/07/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 17/07/2019.