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IUCN/BirdLife International Red List

 

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The Red List presents numbers of taxa recorded per grid cell for a group of species listed in the Red Data Book Threatened Birds of the Americas (Collar et al. 1992), which was subsequently adjusted following new quantitative criteria for threat (IUCN/SSC 1994) by Collar et al. (1994).  Collar et al. (1994) is the most exclusive list, covering only those species threatened "with a high probability of extinction in the medium-term future" (subdivided into ‘critical’, ‘endangered’ and ‘vulnerable’) plus those for which too little data exist for evaluation (‘data deficient’), those "close to qualifying for the threatened categories" (‘near-threatened’), those that are ‘extinct in the wild’ and those that are ‘conservation dependent’ (no species in this last category occur in Latin America). This summary Red List is an update of the comprehensive Red Data Book (Collar et al. 1992). Collar et al. (1994) list a total of 564 continental Latin American landbirds (295 threatened, 1 extinct in the wild, 6 data deficient, and 262 near-threatened).