Bird flu is being cited as the cause of the recent deaths of a Chilean flamingo and harbor seal at Lincoln Park Zoo, the zoo ...

He was described as a quick learner who could often be seen participating in training sessions with keepers. (Photos courtesy ...

Teal the Chilean flamingo had just been born last fall and Slater the harbor seal was often seen training with keepers ...

Lincoln Park Zoo said the specific source of the exposure of the animals to bird flu, or H5N1 virus, is not known.

The sources of exposure are unclear, but officials said it was almost certainly from contact with an infected waterfowl.