Storks are large, long-legged, long-necked wading birds with long, stout bills. They belong to the family called Ciconiidae, and make up the order Ciconiiformes. Ciconiiformes previously included a number of other families, such as herons and ibises, but those families have been moved to other orders.
In Singapore, the endangered Milky Stork (M. cinerea) is threatened by hybridization with the closely related Painted Stork (M. leucocephala). Immediate conservation action is warranted (Baveja et al., 2019).
Baveja, P., Tang, Q., Lee, J.G.H. & Rheindt, F. (2019) Impact of genomic leakage on the conservation of endangered Milky Stork. Biological Conservation, 229:59-66.