Hernando de Macedo-Ruiz2026-03-222026-03-22197910.1017/s0030605300016355https://doi.org/10.1017/s0030605300016355https://andeanlibrary.org/handle/123456789/54571Citaciones: 3The author was one of the first people to see the white-winged guan Penelope albipennis , an endemic Peruvian bird thought to be extinct, after its rediscovery in September 1977. It is believed now that a few hundred of the birds may survive, and if protected could become a viable population. But some are taken for food, and it is urgent to create a sanctuary for them. The author is Head of the Department of Ornithology and Mammalogy in the Natural History Museum in Lima.enOrnithologyGuanGeographyWhite (mutation)ZoologyNatural historyPopulationEcologyEthnologyBiologyarticle