G’day again Greg,
I’m now more up to speed with you on this group after reading some extra references and you were absolutely correct with your cautionary note. It’s not straight forward and the paired white tertials feature mentioned in a couple of field guides(they actually look like longest scapular to me) are not going to be helpful. Tony Paliser’s remarkable success at photographing one of the illusive pair of live birds appears to be an immature so the task of identification is going to be even more difficult from plumage features. Measurements taken of the dead bird would now appear the most promising piece of evidence.
Cheers Jeff.
G’day Greg,
Mike Carter told me on the phone that the bird had a white inner most tertial on each side, so I guess it must be the migratory species nisicolor, which would also be the most likely. But let’s wait and see the photos.
Cheers Jeff.