Bittern

is found three times in connection with the desolations to come
upon Babylon, Idumea, and Nineveh (Isa. 14:23; 34:11; Zeph.
2:14). This bird belongs to the class of cranes. Its scientific
name is Botaurus stellaris. It is a solitary bird, frequenting
marshy ground. The Hebrew word (kippod) thus rendered in the
Authorized Version is rendered "porcupine" in the Revised
Version. But in the passages noted the kippod is associated with
birds, with pools of water, and with solitude and desolation.
This favours the idea that not the "porcupine" but the "bittern"
is really intended by the word.