Grey Crowned Crane (Balearica regulorum) | 台北市立動物園資訊網

Overallestimatessuggestthatthespecies'sglobalpopulationhasdeclinedfromover100,000individualsin1985to50,000-64,000individualsin2004(Beilfusset ...

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Justification of Red List Category This species has been uplisted to Endangered because threats such as habitat loss and the illegal removal of birds and eggs from the wild have driven very rapid declines during the past three generations (45 years).

Population justification The current population size has recently been estimated at 26,500-33,500 (Morrison in press) and is placed in the 20,00-49,999 range. This roughly equates to 17,700-22,300 mature individuals

Trend justification Overall estimates suggest that the species’s global population has declined from over 100,000 individuals in 1985 to 50,000-64,000 individuals in 2004 (Beilfuss et al. 2007). This implies that the species may have declined by over 50% in 19 years, and when these data are extrapolated to a period of 45 years in the past (1967-2012) or past and...