The almost-eleven years of observations here, readers, have the nature of pastiche, of collage. That is, if I write, ‘Chicks do X and Y,’ then that knowledge may have come from watching wild chicks, or Alpha and Omega, or Uno, or Felicity, Number One, and Greedy.
So, it is the odd case that all the four tame-wild rothschildis we know best are all female. And the two birds presently here, the last of Eric’s eight orphans, are the first males we’ve observed at this age. There are some posts here, about six and eight months old, that contain details about the first vocalisations of male chicks in their last season as chicks. I could not have made such observations just a year ago, because we didn’t have the data.
These two ‘chicks’ – I still call them ‘cheepers’ – are now young adults. Here’s the Note:
Their vocalisations in the last three-five months have been notable: quite clearly male, but a very low volume model of the male call. But they have also periodically turned the volume up a little, and enjoyed about a half-volume male ‘gurk.’ I was quite uncertain about whether they could produce full-volume vocalisations – until yesterday!
The two birds are a bit sooky. All the other six of their clutch (the other orphans) went bush months and months ago. But in just the last six weeks, a very clear pattern has emerged: the two go off overnight, or even for days on end – a record of five days away at this point. And then, as I’ve noted in posts above, they bought home a girl emu! Well, one of them did. LimpyChick is the one who was injured when his Dad was killed; was coddled a little as he recovered; and remains the sookiest. So it is Tooshtoosh, it seems, who has attracted the female.
It is clear, then, that we are watching two young birds in a stage I’ve theorized about: physically mature, but still ‘culturally’ maturing. They go off with wild birds. They add to their ‘memory map.’ We guess they interact with wild birds as what they are: inexperienced and somewhat weak (underweight?) males trying to figure out how it all works. We wish we had the weights of these birds month by month. I’d like to know if they put on a few kilos in their third and fourth years. That extra weight would make all the difference.
A Related Note: lots of work to do on the standard idea that the species is gyno-centric. Yes, they are – but I have seen two breeding-pairs in which the male seemed dominant. Eric was one. So now, having before us perhaps some years of observing the territorial and mating habits of two males, let’s see how that pans out.
We should be ready for the project to end abruptly, though. You see, with the females, they tended to bring their prospective consorts back here. But Limpychick and Tooshtoosh are likely to follow their females, and incubate elsewhere. So we will not see them. UNLESS . . . they do what I think the males do, and lead newly-hatched chicks back to their – the males’ – home territory. That would be fabulous; we’d have a Noo Eric!!!! And new clutches of chicks to observe.