mocking thrush vs thrasher

mocking thrush and thrasher both are nouns.

Word	Noun	Adjective	Verb	Adverb
mocking thrush	Yes	No	No	No
thrasher	Yes	No	No	No

As nouns, mocking thrush and thrasher are synonyms defined as:

mocking thrush and thrasher: thrush-like American songbird able to mimic other birdsongs

mocking thrush (noun)	thrasher (noun)
thrush-like American songbird able to mimic other birdsongs	thrush-like American songbird able to mimic other birdsongs
	large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed
	a farm machine for separating seeds or grain from the husks and straw