Takahe chicks and puppet mum
The takahē (Porphyrio [Notornis] hochstetteri) is the worlds largest rail and critically endangered with extinction. They were considered extinct until rediscovered in the remote Murchison Mountains in 1948. The introduced stoat from Europe has been sited as the major cause of their decline but rats, cats and other introduced species may also be predating on birds, their chicks and eggs as well as competing for food.
With fewer than 200 animals it is essential that as many chicks are recruited to the adult wild population so the Department of Conservation, NZ (DOC) has an assisted rearing fascility. Whilst there I snapped some footage of some young chicks:
Check out http://www.doc.govt.nz/conservation/native-animals/birds/land-birds/takahe/ for more information.