Boyd’s Bible Dictionary:
(havoc). An unclean bird; species of falcon (Lev. 11:16; Deut. 14:15; Job 39:26).
“Hawk” From Concise Bible Dictionary:
Eurasian Kestrel — Falco Tinnunculus
The Hebrew word is nets, and is held to embrace the different species of hawk, of which there are several, as indeed is implied by the words “the hawk after his kind.” They were birds of prey and were pronounced to be unclean (Lev. 11:16; Deut. 14:15). Some at least of the hawks are migratory, and this is supposed to be alluded to in Job 39:26, in the expression “stretch her wings toward the south.” The most common of the smaller hawks in Palestine is the Kestrel, Tinnunculus alaudarius.
“Night-Hawk” From Concise Bible Dictionary:
See HAWK.
Strong’s Dictionary of Hebrew Words:
Meaning:
from 2554; a species of unclean bird (from its violence), perhaps an owl