droppings vs fecal matter

droppings and fecal matter both are nouns.

Word	Noun	Adjective	Verb	Adverb
droppings	Yes	No	No	No
fecal matter	Yes	No	No	No

As nouns, fecal matter is a hypernym of droppings; that is, fecal matter is a word with a broader meaning than droppings:

Other hypernyms of droppings include BM, dejection, faecal matter, faeces, feces, ordure, stool.

droppings (noun)	fecal matter (noun)
fecal matter of animals	solid excretory product evacuated from the bowels