Distribución, estatus y características del hábitat de la Terrera Marismeña Calandrella rufescens (Vieillot, 1820) en la isla de Tenerife, Canarias (Aves: Alaudidae)

In this paper, recent data is presented concerning the Lesser Short-toed Lark (Calandrella rufescens) on Tenerife. Only four breeding populations have been located, (three in the south and one in the north of the island), estimating the total number of pairs to be less than one hundred. The birds occupy two habitats types. One comprising xerophytic vegetation and abandoned cultivated fields in the lower vegetation zone of the south and the other, rich agricultural land and humid meadows on the La Laguna Plateau in the northeast. In light of the lark's critical situation, a change is proposed in the current I. U.C.N, conservation category assigned to the nominal subspecies, passing from that of Vulnerable (V) to Endangered (E) - and at the sametime, a series of conservation measures are indicated.