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

Wattled Curassow

Wattled Curassow (Crax globulosa) was once widespread across the Amazon basin. High hunting pressure has been causing drastic declines, so that the population is now very small and restricted to scattered, isolated subpopulations. These declines are ongoing and it is therefore listed as Endangered. Available at: https://www.iucnredlist.org/species/22678537/221386350

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…

Giant Kangaroo Rat

Giant Kangaroo Rat (Dipodomys ingens) is listed as Endangered because its area of occupancy (AOO) is less than 5,000 km², its population is severely fragmented, and there is an ongoing decline in the extent of occurrence (EOO), AOO, and extent and quality of its habitat. Available at: https://www.iucnredlist.org/species/6678/220892537

Worthen’s Sparrow

Worthen’s Sparrow (Spizella wortheni) has a very small and declining population, and fledging success is very low. It is therefore listed as Endangered. Available at: https://www.iucnredlist.org/species/22721182/118141491

Darwin’s Fox

Darwin’s Fox (Lycalopex fulvipes) was previously classified in 2004 and 2008 as Critically Endangered based on an estimated population size of “less than 250 mature individuals with at least 90% of the population occurring in one subpopulation” (Chiloé Island) (Jiménez and McMahon 2004). New distribution information (Vila et al. 2004, D’Elia et al. 2013, Farías et…

El Oro Parakeet

El Oro Parakeet (Pyrrhura orcesi) has a very small population. Remaining habitat is fragmented, and both range and population are thought to be declining. As a result, the species qualifies as Endangered. Available at: https://www.iucnredlist.org/species/22685851/181549899

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…

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…

Marbled Murrelet

Marbled Murrelet (Brachyramphus marmoratus) is still abundant, but it is treated as Endangered because its population is estimated to have undergone a very rapid reduction, especially in the southern portion of its range, which is expected to continue, owing to a variety of threats. Available at: https://www.iucnredlist.org/species/22694870/178976917