Question: how much food does a st kilda wren need to consume to stay alive

St Kilda Wren answered on 11 Nov 2017:

We don’t know exactly how much food they need to stay alive, but we do know that they need to eat frequently throughout the day. We also know that because wrens are small and have fast metabolisms, they lose weight very quickly. This is why wrens don’t stay still for long – they’re always looking for the next meal.