נוֹתֵ֣ן לִבְהֵמָ֣ה לַחְמָ֑הּ לִבְנֵ֥י עֹ֝רֵ֗ב אֲשֶׁ֣ר יִקְרָֽאוּ׃
ער גיט דער בהמה איר שפּײַז, די קינדער פֿון ראָב װאָס רופֿן.
Rashi
to the young ravens Our Sages explained that he [the raven] is cruel to his offspring, and the Holy One, blessed be He, has pity on them and prepares for them gnats from their excrement, which enter their mouths.