lobate foot vs bird's foot

lobate foot and bird's foot both are nouns.

Word	Noun	Adjective	Verb	Adverb
lobate foot	Yes	No	No	No
bird's foot	Yes	No	No	No

As nouns, bird's foot is a hypernym of lobate foot; that is, bird's foot is a word with a broader meaning than lobate foot:

lobate foot: a bird's foot having separate toes each with membranous flaps along the sides
bird's foot: the foot of a bird

lobate foot (noun)	bird's foot (noun)
a bird's foot having separate toes each with membranous flaps along the sides	the foot of a bird