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"Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan lokasi mencari makan terhadap keragaman mangsa yang dikonsumsi tiga jenis kuntul yang menghuni kawasan Cagar Alam Pulau Dua Serang. Metode penelitian yang digunakan adalah pengamatan langsung dengan didukung oleh pengambilan gambar. Hasil penelitian menunjukan bahwa Casmerodius albus dan Egretta garzeta yang memiliki preferensi untuk mencari makan pada dataran berlumpur dan tambak, dan mengkonsumsi ikan sebagai mangsa utamanya. Sedangkan Bubulcus ibis memilih sawah dan tegalan sebagai lokasi mencari makan disebabkan karena jenis mangsa utama yang dikonsumsinya adalah serangga. Preferensi terhadap pemilihan lokasi mencari makan mempengaruhi jenis dan ukuran mangsa yang dikonsumsi oleh ketiga kuntul tersebut. Casmerodius albus memiliki preferensi untuk mencari makan di dataran berlumpur. Egretta garzetta memiliki preferensi untuk mencari makan di tambak dan Bubulcus ibis memiliki preferensi untuk mencari makan di tegalan. Jenis mangsa Casmerodius albus sebagian besar ikan dengan ukuran lebih besar dari 15 cm. Egretta garzetta mengkonsumsi ikan, sebagian besar berukuran 3-5 cm. Sedangkan mangsa utama Bubulcus ibis adalah serangga dengan ukuran lebih kecil dari 3 cm.

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Prey diversity influenced by the different or foraging areas for three species herons in Cagar Alam Pulau Dua Serang. This research is to know the influenced of foraging areas to prey diversity for three species herons in Cagar Alam Pulau Dua Serang, Banten Province. This research have been done at feeding area for the herons around Cagar Alam Pulau Dua. The data were from film shooting use Focal Observation Methods, while the film shooting analyze use scan sampling methods. It's explain that Casmerodius albus and Egretta garzetta have preferency to select the mudflat and fisheries around CAPD as foranging location because they preferency to select fish as they main prey. Bubulcus ibis who select to using rice-field and grassland as a foraging location have preferency to select insects as a main prey. The selection of foraging location for three species herons are depend on the spesific kind and size of preys for them. The preferency for Casmerodius albus to feedinginest is mudflat with the mayority prey are big fish, with the size of more than 15 cm. Egretta garzetta have preferency to select fisheries because they main prey are fish with size of about 3-5 cm. Bubulcus ibis is prefer to feeding in grassland because they eat the insect with the preferences prey size smaller than 3 cm."

"Further detailed research is required to obtain deeper information on the role of wild birds on the distribution of Avian influenza in Asia. A research has been carried out on February?June 2007 focused on blood sampling (serosurveillance) of wild birds in Pulau Dua Nature Reserves (CAPD), Serang, Banten. The research is aimed to investigate the infection of AI virus sub-tye H5N1 on the studied wild birds. The blood samples were taken from studied aquatic birds, followed by HI (haemagglutination-inhibition) test. A total of 183 samples represent 7 water bird species were taken i.e Cattle egret Bubulcus ibis,Javan pond-heron Ardeola speciosa, Little egret Egretta garzetta, Intermediate egret Egretta intermedia, Black-crowned night heron Nycticorax nycticorax, Great egret Casmerodius albus and Grey heron Ardea cinerea. The result revealed that 41 (23.27%) samples showed the present of AIV antibodies serotype H5N1 which is identified as positive. Data showed 5 positive-test species, including B. ibis (29.27%), E. garzetta (29.27%), E. intermedia (4.88%), Ardeola speciosa (7.32%), and N. nycticorax (29.27%). A total of 41.46% were infected adult individual, whereas 58.54% were juveniles."