Booted Warbler

The booted warbler (Iduna caligata) is a species of passerine bird belonging to the family Acrocephalidae, the reed and tree warblers. This species breeds in Eastern Europe and western Asia, wintering in south Asia. it is a regular vagrant to Western Europe. == Taxonomy == The booted warbler was first formally described as Sylvia caligata by the German physician, explorer, botanist and zoologist Martin Hinrich Carl Lichtenstein with its type locality given as the Ilek River, near Orenburg. This species is now classified in the genus Iduna, the tree warblers, within the family Acrocephalidae. All the "Old World warblers" were formerly classified within the wastebin taxon known as Sylviidae sensu lato, but in the late 20th Century, molecular studies resulted in this taxon being divided into a number of families. It was formerly considered to be conspecific with Sykes's warbler, but the two are now usually both afforded species status. == Etymology == The booted warbler belongs to the genus Iduna which was proposed by Alexander Keyserling and Johann Heinrich Blasius in 1840, but they gave no explanation of the genus name, though in Norse mythology, Iðunn, or Iduna, is the goddess of spring and fertility who was changed into…