mating season vs breeding season

mating season and breeding season both are nouns.

Word	Noun	Adjective	Verb	Adverb
mating season	Yes	No	No	No
breeding season	Yes	No	No	No

As nouns, mating season and breeding season are synonyms defined as:

mating season and breeding season: The breeding season is the most suitable season, usually with favourable conditions and abundant food and water, for breeding.

mating season (noun)	breeding season (noun)
The breeding season is the most suitable season, usually with favourable conditions and abundant food and water, for breeding.	The breeding season is the most suitable season, usually with favourable conditions and abundant food and water, for breeding.