These are for a group of hooded butcherbirds if you noticed the photo in the signage and that white dots that are the bird wings on the left. They do have the white-necked myna (As you had shown in the signage previously).
Jagat Satwa Nusantara is the one of the only two facility in Java to display this species (The other is Gembira Loka). This species are rare in Indonesian zoos/bird parks and also aren't present before the revitalization.
@Rizz Carlton It's fantastic that the Bird Park has brought in several rare species and I see that Zootierliste has this facility, Gembira Loka and Bali Bird Park with Hooded Butcherbirds, but of course that site is never 100% accurate. I don't think that @twilighter and I realized just how rare they are and so we are fortunate to have seen them more than once on our Southeast Asian trip.
