In B'Midbar 11:31 it is stated:
וְרוּחַ נָסַע מֵאֵת יי וַיָּגָז שַׂלְוִים מִן־הַיָּם וַיִּטֹּשׁ עַל־הַֽמַּחֲנֶה כְּדֶרֶךְ יֹום כֹּה וּכְדֶרֶךְ יֹום כֹּה סְבִיבֹות הַֽמַּחֲנֶה וּכְאַמָּתַיִם עַל־פְּנֵי הָאָֽרֶץ
"A wind went forth from the Lord and swept quails from the sea and spread them over the camp about one day's journey this way and one day's journey that way, around the camp, about two cubits above the ground."
Are שַׂלְוִים definitively quails? I ask because it states they came מִן־הַיָּם which could mean from the sea, or from the west. Comparing this, the complainers remembered the "fish" from Mitzrayim. Could it be that they ate fish of some sort rather than quail, or are there any sources that insinuate a definite definition of שַׂלְוִים?