the barn owl, the tawny owl, the carrion vulture,
Here is, 1. A general rule concerning fishes, which were clean and which not. All that had fins and scales they might eat, and only those odd sorts of water-animals that have not were forbidden, Lev 11:9, Lev 11:10. The ancients accounted fish the most delicate food (so far were they from allowing it on fasting-days, or making it an instance of mortification to eat...
Commenting on Leviticus 11:9-19
And the swan,.... This is a bird well known to us, but it is a question whether it is intended by the word here used; for though it is so rendered in the Vulgate Latin, it is differently rendered by many others: the Targums of Jonathan and Jerusalem call it "otia", which seems to be the same with the "otus" of Aristotle (n), who says...
the swan--found in great numbers in all the countries of the Levant. It frequents marshy places--the vicinity of rivers and lakes. It was held sacred by the Egyptians, and kept tame within the precincts of heathen temples. It was probably on this account chiefly that its use as food was prohibited. MICHAELIS considers it the goose.