PRELIMINARY OBSERVATION ON NESTING ECOLOGY OF ENDANGERED BROWN-CHEEKED BULBUL (ALOPHOIXUS BRES) IN JATIMULYO AGROFORESTRY

Agus Nurrofik (Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, Malang 65145, East Java, Indonesia)
Adityas Arifianto (Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, Malang 65145, East Java, Indonesia)
Afina Aninnas (Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, Malang 65145, East Java, Indonesia)
Kelik Suparno (Conservation Division of Wanapaksi Forest Farm Community Gunungkelir sub-village, Jatimulyo village, Menoreh Mountains, Yogyakarta, Indonesia)
Agung S. Kurnianto (Agrotechnology Study Program, Faculty of Agriculture, University of Jember, Kalimantan Street no. 37, Jember, Indonesia)
Luhur Septiadi (Wildlife Conservation Society, Indonesia Program, Bogor, West Java, 16128, Indonesia)
Nia Kurniawan (Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, Malang 65145, East Java, Indonesia)

Treubia
Vol. 50 No. 1 (2023)

We found an active nest of endangered Brown-cheeked Bulbul (Alophoixus bres) with two chicks in nest-adoption program at Jatimulyo village, Yogyakarta province, Indonesia on 19 December 2021. It was placed on the lateral branch of apus bamboo (Gigantochloa apus) 1.5 m high. The nest was cup-shaped, with outer diameter of ± 8 cm, inner diameter of ± 6 cm, and depth of ± 3 cm. It was made of living non-vascular plants and plant fragments. Our observation revealed that the food of the chicks was primarily comprised of insects (in the morning) and fruits (at midday). The insect preys include caterpillars, Lepidoptera, Coleoptera, Orthoptera and Diptera. The fruits were mangir, lempeni, and senggani