crested vs tufted

crested and tufted both are adjectives.

Word	Noun	Adjective	Verb	Adverb
crested	No	Yes	No	No
tufted	No	Yes	No	No

As adjectives, crested and tufted are synonyms defined as:

crested and tufted: (of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination

Other synonyms of crested include topknotted.

crested (adjective)	tufted (adjective)
(of a knight's helmet) having a decorative plume	having or adorned with tufts
(of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination	(of plants) growing in small dense clumps or tufts
bearing an heraldic device	(of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination