John Trapp on Jeremiah 4:25

Ver. 25. I beheld, and loe there was no man] But all killed, captived, or fled. Judaea lay utterly waſte for Seventy years. Inſomuch that after the ſlaughter of Gedaliah, when all, men, women and children, fled into Egypt, there was not a Jew left in the Country.

And all the Birds of the heavens were fled] Birds were given men for food, Phyſick, and delight, as companions of his life; therefore it is reckoned both here and chap. 9.10. as a judgement to loſe them.