Last March a new juvenile cassowary appeared in our forest. Judging by the size of his casque and wattles and the fact that there were still some brown feathers visible on the back, we tentatively assumed it was a 3 year old male. He had unusually long, light-coloured “fingernails”: the quills sticking out from the rudimentary wings.
Distinguishing features of cassowaries are mainly the casque, which might be straight, leaning to one side or the other, big or small (although in a young bird it would most likely keep growing for a few years), and the wattles, which can be short, long, one longer than the other, or oddly shaped.
He came past our house and the cabin quite regularly, and when we noticed, that he didn’t have his long, golden quills anymore, but shorter, black ones, we assumed that he lost them while moulting.
To our surprise, he recently showed up with his quills as long and golden as before! Shortly thereafter, they were black and short again! TWO birds! Same size, very similar casques and wattles, but very different quills!
So, when trying to identify individual cassowaries, have a close look at their fingernail as well!