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Range DescriptionPsittacara holochlorus is distributed from southern Texas, USA, and northern Mexico (including subspecies brevipes on Socorro Island) south through the Middle American isthmus to south-western Nicaragua, and occurs in a variety of wooded habitats (Juniper and Parr 1998). An overall decline in the population is thought to have occurred in recent decades owing to the expansion of intensive agriculture, and the species is known to be traded in small numbers locally and internationally (Juniper and Parr 1998). However, its use of modified habitats probably buffers the population to some extent against the negative impacts of the degradation and fragmentation of natural habitats.
Subspecies brevipes is endemic to Socorro in the Revillagigedo Islands, Mexico, and is regarded as highly threatened. The population was estimated at 400-500 birds within c.35 km2 of suitable habitat in 1991. Numbers were considered stable and did not decline subsequently in the early 1990s (Rodríguez-Estrella 1995, Rodríguez-Estrella et al. 1996). However, there may have been some contraction in range since c.1960. Surveys from 2006 and 2007 estimated a population of c.300 individuals, suggesting a population decline from previous population estimates (J. E. Martínez-Gómez in litt. 2007).