Protected Whales: Sei Whale (Balaenoptera borealis).
Stamps FO 403 of Postverk Føroya, Faroe Islands
Date of issue: 17 September 2001
Artist: Edward Fuglø https://commons.wikimedia.org/wiki/Edward_Fugl%C3%B8
Source: https://commons.wikimedia.org/wiki/File:Faroe_stamp_403_sei_whale_(Balaenoptera_borealis).jpg

The sei whale (Balaenoptera borealis) is a baleen whale, the third-largest rorqual after the blue whale and the fin whale. It inhabits most oceans and adjoining seas, and prefers deep offshore waters. It avoids polar and tropical waters and semienclosed bodies of water. The sei whale migrates annually from cool and subpolar waters in summer to winter in temperate and subtropical waters.