On this cover, we have a mixture of three bird sets. The first bird stamp, issued in 2014, shows the Nightingale Island finch (Nesospiza questi). It is named after the Nightingale Island on which it is endemic to. It is vulnerable species due to habitat loss. It feeds on seeds, berries and invertebrates.

The next three stamps were issued in 2010 and 2013 and they all feature the Tristan albatross (Diomedea dabbenena), a critically endangered seabird. It is endemic to Tristan da Cunha and it forages all over the southern Atlantic ocean for fish and cephalopods.

On the second row, the final stamp, issued in 2010, depicts the Gough Island finch (Rowettia goughensis). It is also critically endangered. It is endemic to Gough Island. It feeds on invertebrates, seeds, berries and even carrion.