Pied Tamarin (Saguinus bicolor) is considered Critically Endangered due to a projected population reduction of 80% or more in the next 18 years (three generations) due to serious multiple threats suffered within a very concentrated range in and around the city of Manaus: deforestation and habitat fragmentation related to expanding rural settlements and agriculture, livestock…
Mangrove Finch
Mangrove Finch (Geospiza heliobates) has an extremely small, severely fragmented range, and only two viable subpopulations. Recent surveys suggest that the number of locations and mature individuals are both declining significantly, and consequently it qualifies as Critically Endangered. Available at: https://www.iucnredlist.org/species/22723786/182523098
Chilean Woodstar
Chilean Woodstar (Eulidia yarrellii) is classified as Critically Endangered based on evidence that it has undergone an extremely rapid population decline. Urgent research and targeted conservation actions are now required to understand, halt and reverse this decline. Available at: https://www.iucnredlist.org/species/22688244/181468935
Saint Lucian Whiptail
Saint Lucian Whiptail (Cnemidophorus vanzoi) is listed as Critically Endangered on the basis that this species effectively represents a single, severely fragmented population, and is at continual risk from the possible introduction of invasive mammals to any or all of the four small islands where the species presently survives, which would lead to a projected…
Vancouver Island Marmot
Vancouver Island Marmot (Marmota vancouverensis) is listed as Critically Endangered because in 2016 it was estimated that there were between 90-130 individuals occurring in two subpopulations in the wild. Its area of occupancy is less than 10 km², and there has been extensive clear cutting of its forest habitat. A population reduction of greater than…
Least Concern
A taxon is Least Concern (LC) when it has been evaluated against the criteria and does not qualify for Critically Endangered, Endangered, Vulnerable or Near Threatened. Widespread and abundant taxa are included in this category. Learn more at: https://www.iucnssg.org/iucnredlist.html
Vulnerable
A taxon is Vulnerable (VU) when the best available evidence indicates that it meets any of the criteria A to E for Vulnerable, and it is therefore considered to be facing a high risk of extinction in the wild. Learn more at: https://www.iucnssg.org/iucnredlist.html
Endangered
A taxon is Endangered (EN) when the best available evidence indicates that it meets any of the criteria A to E for Endangered, and it is therefore considered to be facing a very high risk of extinction in the wild. Learn more at: https://www.iucnssg.org/iucnredlist.html
Scarlet Macaw
Scarlet Macaw (Ara macao) has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the…
Savannah Sparrow
Savannah Sparrow (Passerculus sandwichensis) has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the…