The Eurasian skylark is a passerine bird in the lark family, Alaudidae. It is a widespread species found across Europe and the Palearctic with introduced populations in New Zealand, Australia and on the Hawaiian Islands. It is a bird of open farmland and heath, known for the song of the male, which is delivered in hovering flight from heights of 50 to 100 metres. The sexes are alike. It is streaked greyish-brown above and on the breast and has a buff-white belly. Source: Wikipedia
Alauda arvensis arvensis: Azores; Europe from Wales to Norway, Ural Mountains, and Alps
Alauda arvensis scotica: Ireland, northwestern England, Scotland, and Faroe Islands
Alauda arvensis cantarella: southern Europe to Balkans, Crimea, and Iran; winters to northern Africa
Alauda arvensis armenica: Transcaucasia and eastern Türkiye to southwestern Iran (Zagros and Elburz mountains)
Alauda arvensis sierrae: central and southern Portugal to southern Spain
Alauda arvensis guillelmi: northern Portugal and northwestern Spain
Alauda arvensis harterti: mountains of northwestern Africa
Alauda japonica intermedia: breeds in southeastern Siberia and Korea, probably also in northeastern China; winters in southeastern China
Alauda japonica pekinensis: northeastern Siberia to Sea of Okhotsk, Kamchatka Peninsula, and Kuril Islands
Alauda japonica dulcivox: southeastern Russia to Yenisey basin and Afghanistan; winters to northwestern India
Alauda japonica kiborti: southern Siberia to northern Mongolia, Manchuria, and Korea; winters to eastern China
Alauda japonica lonnbergi: breeds northeastern Siberia, northern Korean Peninsula, and Shantar and Sakhalin islands, northeastern Russia); winters in northeastern China, Korea, and Japan