wood-creeper vs woodcreeper

wood-creeper and woodcreeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
wood-creeper	Yes	No	No	No
woodcreeper	Yes	No	No	No

As nouns, wood-creeper and woodcreeper are synonyms defined as:

wood-creeper and woodcreeper: any of numerous South American and Central American birds with a curved bill and stiffened tail feathers that climb and feed like woodpeckers

Other synonyms of wood-creeper include tree creeper, woodhewer.

wood-creeper (noun)	woodcreeper (noun)
any of numerous South American and Central American birds with a curved bill and stiffened tail feathers that climb and feed like woodpeckers	any of numerous South American and Central American birds with a curved bill and stiffened tail feathers that climb and feed like woodpeckers