A series of caches on ENDANGERED SPECIES in North America (Birds). An endangered species is a species which has been categorized as very likely to become extinct. Endangered (EN), as categorized by the International Union for Conservation of Nature (IUCN) Red List, is the second most severe conservation status for wild populations in the IUCN's schema after Critically Endangered (CR).
The yellow-shouldered blackbird (Agelaius xanthomus), also known as la Mariquita de Puerto Rico or capitán, is a diurnal blackbird endemic to the archipelago of Puerto Rico and one of the species belonging to the genus Agelaius of the family Icteridae. It has black plumage with a prominent yellow shoulder on its wing. Adult males and females are of similar appearance. The species is predominantly insectivorous. The yellow-shouldered blackbird was listed as an endangered species on November 19, 1976 by the U.S. Fish and Wildlife Service.
Critical habitat was subsequently established for the entire Mona and Monito islands, the Roosevelt Roads Naval Station in Ceiba, an area expanding from Cabo Rojo to Guánica in the southwest region of Puerto Rico, and a small area in San Germán. Diseases such as avian pox have been associated with extinction of bird populations The Geocache Notification Form has been submitted to Deb Peterson of the Polk County Parks Department
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