rangatira

3 posts

Chatham petrel (Pterodroma axillaris)

Chatham petrel population growing

Status (2012):Population (2010):Trend: Nationally vulnerable1,400 individualsImproving Probably once abundant throughout the Chatham Islands, human exploitation, habitat destruction and introduced predators saw the Chatham petrel restricted to Rangatira or Southeast Island by the time of its discovery in 1892. Until 1961 farming activity on Rangatira resulted in the petrels being confined […]

Chatham Island black robin (Petroica traversi)

Chatham Island black robin

Status (2012):Population (2013):Trend: Nationally critical298 mature individualsStable Restricted to Little Mangere Island for over 80 years, the deteriorating condition of the small area of forest available to the birds and their resulting population decline saw the seven remaining birds transferred to a larger patch of bush on adjacent Mangere Island […]