hawkbill vs hawksbill

hawkbill and hawksbill both are nouns.

Word	Noun	Adjective	Verb	Adverb
hawkbill	Yes	No	No	No
hawksbill	Yes	No	No	No

As nouns, hawkbill and hawksbill are synonyms defined as:

hawkbill and hawksbill: pugnacious tropical sea turtle with a hawk-like beak; source of food and the best tortoiseshell

Other synonyms of hawkbill include Eretmochelys imbricata, hawksbill turtle, tortoiseshell turtle.

hawkbill (noun)	hawksbill (noun)
pugnacious tropical sea turtle with a hawk-like beak; source of food and the best tortoiseshell	pugnacious tropical sea turtle with a hawk-like beak; source of food and the best tortoiseshell