So many animals have perished at Indonesia's biggest zoo that wildlife activists call it the "zoo of death" and are demanding an overhaul of its management.
Activists say many of the more than 2200 animals at the zoo in the city of Surabaya are crowded into cages and enclosures far too small for them, and they also face a shortage of proper feed.
One of the latest losses was a rare Sumatran tiger that died unexpectedly last month.
"They need to make an effort to ease the overpopulation of animals," Petrus Riski of the Indonesia Wildlife Communication Forum said at the zoo as keepers carried a crate of fish into a congested pen of pelicans.
"It can be done by sending them to other conservation institutes."