Alphonse Milne-Edwards

Sir Alphonse Milne-Edwards (1835-1900) - noted palaeontologist who wrote 'Histoire Naturelle de l'Oiseaux' as well as a book on the natural history of Madagascar. He was the first person to recognise that the Giant Panda was not a bear but belonged in a distinct family. Four birds were named after him, two of which feature on stamps. The first of these is Edwards' Fig-Parrot (Psittaculirostris edwardsii).This small, stocky parrot with a large head is found only in lowland forests of north-eastern New Guinea and appears on the stamp issued by Papua New Guinea in 1967. The second is Edwards' Pheasant (Lophura edwardsi), a bird from the lowlands of Vietnam, which is on the verge of extinction in the wild.

https://en.wikipedia.org/wiki/Alphonse_Milne-Edwards