Easy peezy when they are hungry
Some of our yellow-eyed penguins in rehab at the moment are pre-moult, that means that they are super hungry and are really easy to feed - like this adult who would probably love to have twice as much. They get salmon and it is easy to over-feed them and that results in vomiting - not good. So twice a day they get a meal that it way too small - in their opinion. Once the munchies are over and you offer them a fish they look at you with this expression: "why are you sticking that in my face?" By that stage they probably weigh over 7kg and don't actually need any more food. So they tell us when they have had enough.