Bible Dictionaries
Swan

Fausset's Bible Dictionary

tinshemet . Leviticus 11:18; Deuteronomy 14:16. (See SΕΡΤUΑGΙΝΤ.) Unclean as food. Probably an unclean feeder (which the swan is not, feeding on vegetable foods) is meant; either the "ibis", or also the Ρorphyrio hyacinthinus , the purple gallinule or sultana waterhen, with rich dark blue plumage, and brilliant red beak and legs, and extraordinarily long goes, with which it grasps its food and carries it to its mouth.

Bibliography Information
Fausset, Andrew R. Entry for 'Swan'. Fausset's Bible Dictionary. https://www.studylight.org/​dictionaries/​eng/​fbd/​s/swan.html. 1949.