FEEDING ECOLOGY OF THE JAVAN HAWK-EAGLE (Spizaetus bartelsi) DURING THE NESTLING PERIOD

Elang Jaw

BIRDS OF HALIMUN-SALAK NATIONAL PARK, WEST JAVA, INDONESIA: ENDEMISM, CONSERVATION AND THREATENED STATUS

Bird surveys and long-term bird monitoring in Gunung Halimun-Salak National Park were conducted between 1998 and 2009 to obtain comprehensive data on the bird species in the area. Compilation of bird data from this study and other studies have recorded a total of 271 species, which is about 53.4% of all Javan birds (507 species) or 16.9% of all Indonesian birds (1605 species). As an important bird area, Gunung Halimun-Salak National Park is home to 43 Indonesian and Javan endemic species. Among the endemics, 32 species are restricted range species. Gaps in the protection status of the bird species are discussed. The results of this study show that Gunung Halimun-Salak National Park has the highest richness of bird species in the Java-Bali region and the conservation of its endemic and threatened species should be given main priority

PENGARUH PEMBERIAN BUI PHASEOLUS LUNATUS DALAM RANSUM TERHADAP KONSUMSI PAKAN DAN PERTAMBAHAN BOBOT BADAN AYAM KAMPUNG

DARJONO & DEWI MALIA PRAWIRADILAGA 1987. Effect of level of Phaseolus lunatus seeds in the native chicken ration on feed consumption, and body weight gain Suppl. Berita Biologi 3 :61 -65. The experiment was aimed to obtain a basic guide of the amount of P., lunatus in chicken ration during growing period. Observation using 25 cockerels and 25 pullers, was based on Completely Randomized Design. The treatment consisted of level of P. lunatus in the ration, namely RK (as control ration), RI, RII, RIII, and RIV, containing 0%, 5%, 10%, 15%, and 20% respectively. Data was analyzed using Analysis of Variant, and the difference was tested by Honestly Significant Different Test. The results showed that the level of P. lunatus up to 20% had no significant effect (P > 0,05), on feed consumption and body weight gain during growing period. The highest feed efficiency for the cockerels was RI (0,0593) followed by RK (0,0559), RIII (0,0506), RIV (0,0478), and RII (0,0350) respectively; whereas for the pullets was RII (0,0267) followed by RK (0,0262), RI (0,0225), RIII (0,0220), and RIV (0,0102) respectively

Studi Keanekaragaman Jenis Burung Di Kawasan Ekoeduwisata Daerah Aliran Sungai (DAS) Ciliwung

The limited study of bird in The Ecoturism area of Ciliwung watershed has led to the inability of the management  authority to inform the community about diversity of birds in this area. The purpose of this study is to find out the composition, abundance, and diversity of bird species. The research was carried out in March – July 2021 at 14 observation points divided into 2 research stations called: Saung Matpeci and Shibi. Saung Matpeci Station has five observation points, and Shibi Station has nine observation points. The method used was Point Count method. and the bird diversity was analysid using the Shannon-Wiener Index. There were 518 individuals consisting of 38 species, 26 genera and 19 families of birds. The highest bird abundance value in this area was 0,247 and the lowest abundance was 0,002. The diversity of bird in this area was classified  into moderate category (2,54). The Brontok eagle (Nisaetus cirrhatus) and The Striped fan (Rhipidura javanica) are protected birds in IndonesiaThe limited study of birds in The Ecotourism area of the Ciliwung watershed has led to the inability of the management authority to inform the community about the diversity of birds in this area. The purpose of this study is to find out the composition, abundance, and diversity of bird species. The research was carried out in March – July 2021 at 14 observation points divided into 2 research stations called: Saung Matpeci and Shibi. Saung Matpeci Station has five observation points, and Shibi Station has nine observation points. The method used was the Point Count method. and the bird diversity was analyzed using the Shannon-Wiener index. There were 518 individuals consisting of 38 species, 26 genera, and 19 families of birds. The highest bird abundance value in this area was 0,247 and the lowest abundance was 0,002. The diversity of birds in this area was classified into a moderate category (2,54). The Brontok eagle (Nisaetus cirrhatus) and The Striped fan (Rhipidura javanica) are protected birds in Indonesia

MONITORING of Cacatua sulphurea abbotti POPULATION IN MASAKAMBING ISLAND, INDONESIA

The Critically Endangered Cacatua sulphurea abbotti is a unique subspecies of cockatoo, endemic to a single tiny Masakambing Island in Indonesia. Data procurement on the status and distribution of their wild population is necessarily urgent in order to determine the best conservation strategy for this species. Data were collected annually from 2008-2018 by a direct roost count method in a roosting tree. Only 10 cockatoos were recorded in 2008, but the number continually increased up to 22 birds in 2018 (42.86% increase in a decade). The population was distributed in about 71% of the total size of the island, concentrated in the north-western part with a density of 1.56 (~ 2 birds/km2) in 2008 which raised up to 3.44 (~ 3 birds/km2) in 2018. The zero trapping policy enforced by the local government was probably effective in preventing the population decline, although the population is still vulnerable due to nesting failure, presumably low genetic quality and habitat destruction.Â

HABITAT DAN PERBEDAAN UKURAN TUBUH BURUNG KERAKBASI BESAR (Acrocephalus orientalis) PADA AWAL DAN AKHIR MASA MIGRASI DI INDONESIA

Acrocephalus  orientalis termasuk burung migran pengunjung  di Indonesia, yang berbiak di Asia Timur yaitu Siberia Selatan, Mongolia, Cina, Korea dan  Jepang. Penelitian dilakukan di Danau Tempe (Sulawesi Selatan) dan Tanjung Burung (Tangerang, Banten) pada bulan Oktober- Desember 2008 dan Mei-Juli 2009. Penelitian ini bertujuan untuk : 1) menggambarkan tipe  habitat yang digunakan Acrocephalus orientalis 2) menjelaskan perbedaan  ukuran tubuh pada awal dan akhir masa migrasi di Indonesia.  Hasil penelitian menunjukkan bahwa Danau Tempe dan Tanjung Burung merupakan wilayah di Indonesia yang menjadi  tempat singgah dan tujuan migrasi. Selama waktu penelitian sebanyak 256 ekor  burung Acrocephalus orientalis yang berkunjung pada kedua daerah tersebut berhasil ditangkap dan dilepaskan kembali. Jumlah burung yang tertangkap pada awal musim migrasi adalah 152 ekor dan pada akhir migrasi 104 ekor. Hasil Analysis of Variance (ANOVA) dengan SPSS 16.0 terhadap ukuran tubuh menunjukkan bahwa terdapat perbedaan nyata (P<0.05)  antara burung pada awal dan akhir masa migrasi terhadap berat badan, panjang tarsus, panjang ekor, panjang total dan rentang saya

NEW AND SIGNIFICANT ISLAND RECORDS, RANGE EXTENSIONS AND ELEVATIONAL EXTENSIONS OF BIRDS IN EASTERN SULAWESI, ITS NEARBY SATELLITES, AND TERNATE

The Wallacean Region continues to be widely unexplored even in such relatively well-known animal groups as birds (Aves). We report on the results of an ornithological expedition from late Nov 2013 through early Jan 2014 to eastern Sulawesi and a number of satellite islands (Togian, Peleng, Taliabu) as well as Ternate. The expedition targeted and succeeded with the collection of 7–10 bird taxa previously documented by us and other researchers but still undescribed to science. In this contribution, we provide details on numerous first records of bird species outside their previously known geographic or elevational ranges observed or otherwise recorded during this expedition. We also document what appears to be a genuinely new taxon, possibly at the species level of kingfisher from Sulawesi that has been overlooked by previous ornithologists. Our results underscore our fragmentary knowledge of the composition of the avifauna of eastern Indonesia, and demonstrate that there continues to be a high degree of cryptic, undescribed avian diversity on these islands more than a century and a half after they were visited by Alfred Russel Wallace and other collectors

MORPHOMETRIC AND MOLT OF THE CRESCENT-CHESTED BABBLER (STACHYRIS MELANOTHORAX) IN CISARUA FOREST, WEST JAVA

Crescent-chested Babbler is endemic to the island of Java and Bali, Indonesia and protected by the Indonesian Government Regulation No. 7/ 1999. Its population is suspected to be declining due to ongoing habitat destruction and fragmentation. Information on its eco-biology is very poorly known. There is a need to obtain the information in order to conserve this species and its habitat. Morphometric and molt stages were recorded from 23 individuals captured by mist-nets between February and April 2016. There were variations in morphometric measurement in weight, head bill length, wing length and tail length in Cisarua Forest habitat, but no significant difference was found (F2.19 = 0.822, P> 0.05) in body weight among the three different habitats. This habitat has sufficient resource for Crescent-crested Babbler for molt activity during the study

DNA BARCODING REVEALS THE IDENTITY OF BIRD REMAINS FROM THE BIRD STRIKE INCIDENT IN INDONESIA

A bird strike refers to a collision between birds and a plane. This incident risks the flight because it could damage the aircraft and threaten airlines' safety. The airports have been implementing safety measures to prevent and minimise the risk of bird strikes, such as monitoring wildlife, habitat management, and using various types and techniques of bird deterrents. While monitoring birds will provide baseline data to estimate the level of risk for each species, it is vital to have data on birds directly involved in bird strikes; hence, the airport can determine more precisely which species have the most significant potential to cause bird strikes. Therefore, identifying the remains of birds from the aeroplane is essential as a safety measurement in bird strike management. In this study, we applied DNA barcoding using the cytochrome oxidase I barcode gene to identify the birds' remains. Samples consisting of three feathers and tissues collected from the plane were analysed. The Cytochrome Oxidase I sequence analysis showed that all six samples were identified as Haliaeetus leucogaster (White-bellied sea eagle) with percentage identity 100% after BLAST to NCBI. We also identified the feathers by comparing them with reference specimens, which showed that they came from wing feathers of H. leucogaster. We concluded that DNA barcoding could be used to identify the species of bird involved in bird strike incidents; therefore airport could incorporated DNA barcoding technique on their wildlife hazard management