Birds.

Birds are useful bioindicators for monitoring ecological change. They form an interactive community within the ecosystem and are integral for pollination and seed dispersal for many native plants (Gatesire et al., 2014; Stratford et al., 2015). Nonetheless, the destruction of avian habitats, such as lowland forests for timber, human settlements and coastal development in recent decades have resulted in the decline of many avian species (Kihia, 2014; Barlow et al., 2016). Little work has been done on the mangroves and coastal birds in Sarawak, despite increasing threats towards such ecosystems (Wilson, 2002

A Bird Survey of Sungai Kangkawat Research Station, Imbak Canyon Conservation Area, Sabah

A bird survey was conducted at the Sungai Kangkawat Research Station (117°3′34.593″E, 5°4′29.187″N), Imbak Canyon Conservation Area (ICCA), Sabah from 5th until 8th October, 2018. The objective of this survey was to produce a preliminary checklist of bird species in the study area. The primary method used was mist-netting with occasional observation from vocal and visual identification. A total of 30 mist-nets were deployed for 11 hours (0630-1730 hr.) for four consecutive days with a final accumulation of 1840 net/hours. Overall, 59 species comprising 23 families were recorded throughout the survey. Of these, 114 individuals were netted representing 41 species from 13 families. The most abundant species caught was the Little Spiderhunter Arachnothera longirostra with 26 individuals. Additionally, 18 species from 10 different families were identified via opportunistic sighting and vocalisation. This includes one Critically Endangered (Helmeted Hornbill, Buceros vigil), three Vulnerable (i.e., Rhinoceros Hornbill Buceros rhinoceros, Large-billed Blue Flycatcher Cyornis caerulatus and Blue-headed Pitta Pitta baudii and 20 other Near-threatened species. Four endemic species were recorded namely the Bornean Blue Flycatcher Cyornis superbus, White-crowned Shama Copsychus stricklandi, Black-headed Pitta Pitta ussheri and Blue-headed Pitta Pitta baudii. We expect higher diversity of birds in ICCA because the species accumulation curve did not reach an asymptote until the last day of sampling. This suggests additional trapping effort with point counts along predetermined transects should be considered for future surveys

Bird diversity in Imbak Canyon Conservation Area, Sabah, Malaysia

A bird survey was conducted at the Sungai Kangkawat Research Station (117°3′34.593″E, 5°4′29.187″N), Imbak Canyon Conservation Area (ICCA), Sabah from 5th until 8th October, 2018. The objective of this survey was to produce a preliminary checklist of bird species in the study area. The primary method used was mist-netting with occasional observation from vocal and visual identification. A total of 30 mist-nets were deployed for 11 hours (0630-1730 hr.) for four consecutive days with a final accumulation of 1840 net/hours. Overall, 59 species comprising 23 families were recorded throughout the survey. Of these, 114 individuals were netted representing 41 species from 13 families. The most abundant species caught was the Little Spiderhunter Arachnothera longirostra with 26 individuals. Additionally, 18 species from 10 different families were identified via opportunistic sighting and vocalisation. This includes one Critically Endangered (Helmeted Hornbill, Buceros vigil), three Vulnerable (i.e., Rhinoceros Hornbill Buceros rhinoceros, Large-billed Blue Flycatcher Cyornis caerulatus and Blue-headed Pitta Pitta baudii and 20 other Near-threatened species. Four endemic species were recorded namely the Bornean Blue Flycatcher Cyornis superbus, White-crowned Shama Copsychus stricklandi, Black-headed Pitta Pitta ussheri and Blue-headed Pitta Pitta baudii. We expect higher diversity of birds in ICCA because the species accumulation curve did not reach an asymptote until the last day of sampling. This suggests additional trapping effort with point counts along predetermined transects should be considered for future surveys

A Bird Survey of Sungai Kangkawat Research Station, Imbak Canyon Conservation Area, Sabah

A bird survey was conducted at the Sungai Kangkawat Research Station (117°3′34.593″E, 5°4′29.187″N), Imbak Canyon Conservation Area (ICCA), Sabah from 5 th until 8 th October, 2018. The objective of this survey was to produce a preliminary checklist of bird species in the study area. The primary method used was mist-netting with occasional observation from vocal and visual identification. A total of 30 mistnets were deployed for 11 hours (0630-1730 hr.) for four consecutive days with a final accumulation of 1840 net/hours. Overall, 59 species comprising 23 families were recorded throughout the survey. Of these, 114 individuals were netted representing 41 species from 13 families. The most abundant species caught was the Little Spiderhunter Arachnothera longirostra with 26 individuals. Additionally, 18 species from 10 different families were identified via opportunistic sighting and vocalisation. This includes one Critically Endangered (Helmeted Hornbill, Buceros vigil), three Vulnerable (i.e., Rhinoceros Hornbill Buceros rhinoceros, Large-billed Blue Flycatcher Cyornis caerulatus and Blue-headed Pitta Pitta baudii and 20 other Near-threatened species. Four endemic species were recorded namely the Bornean Blue Flycatcher Cyornis superbus, White-crowned Shama Copsychus stricklandi, Black-headed Pitta Pitta ussheri and Blue-headed Pitta Pitta baudii. We expect higher diversity of birds in ICCA because the species accumulation curve did not reach an asymptote until the last day of sampling. This suggests additional trapping effort with point counts along predetermined transects should be considered for future surveys

DENSITY AND NEST-SITE SELECTION OF INVASIVE MYNAS AND STARLINGS IN URBAN AND SUB-URBAN AREAS IN WESTERN SARAWAK, MALAYSIA

Urban pest bird species, such as the Asian Glossy Starling, Javan Myna, and Common Myna have been a persistent menace to urban properties. This study compares the population densities of each species within urban and sub-urban areas between Kuching and Kota Samarahan. It was found that Javan Myna and Common Myna populations are concentrated in Pending with population densities of 12.9 ind/ha and 13.3 ind/ha, respectively. The Asian Glossy Starling was found to occupy heavily populated areas in Waterfront and the Universiti Malaysia Sarawak campus, with a population density of 15.0 ind/ha at both sites. We also studied the nesting density and habitat requirements of these species. The highest record of nesting density for the Common Myna (0.8 nests/ha) and Javan Myna (0.7 nests/ha) is in Pending, while the Asian Glossy Starling (2.6 nests/ha) is in Waterfront. The following microhabitat variables influenced the birds’ nest site selection: i) nest distance from garbage bins; ii) nest distance from shrubs and grass; and iii) nest distance from trees. Additionally, the data indicated that the birds had a strong preference for nesting in artificial structures. The Common Myna (25%) chose to nest inside air vents, whereas the Javan Myna (29.63%) and Asian Glossy Starling (51.95%) preferred to nest in holes and cavities