A study featured in Animal Behaviour reports that a whopping 40 per-cent of young storks leave their parents if they aren’t happy with the food they bring back. If a chick isn’t getting enough food or isn’t happy with the quality of its meals, it’s likely to move to a neighbouring nest containing fewer, younger chicks.
A bigger chick can dominate a nest full of smaller chicks or a nest with fewer chicks, so a bird that isn’t getting enough food has a huge advantage if it moves to an emptier nest. Survival is the name of the game, and these storks are in it for the long run.
Image from flickr.com/photos/ajhaverkamp