We report the second record of Puna Ibis, Plegadis ridgwayi J.A. Allen, 1876 (Aves, Threskiornithidae), from Ecuador and the first record of this species in seasonally dry tropical forests of the southwest of the country. An individual of P. ridgwayi was sighted in November in Zapotillo, Loja province, 440 km from the only previous record in Ecuador and 65 km from the northernmost Peruvian record. The new record from Ecuador, along with records from the northern coast of Peru, suggests that P. ridgwayi may be expanding its geographic distribution northward in this region.