Black-shouldered vs Masked lapwings

The New Guinea birds are Masked lapwings, Black-shouldered is a rare visitor and I have only seen hybrids around Port Moresby, no pure breds I have seen odd the hybrid around the Cairns area, but again no pure breds, they are otherwise all Masked Moving further afield, I only see Black-shouldered in New Caledonia and Fiji, in both cases a recent colonist. Seems like a pretty good split to me, along the lines of Carrion vs Hooded Crow in the UK I’ll be using the Lynx HBW taxonomy in the forthcoming Lynx Edicions New Guinea Field Guide, we just went over Black-shouldered in New Guinea and have left it as a vagrant basically. Phil Gregory Website 1: Http://www.sicklebillsafaris.com Website 2: Http://www.cassowary-house.com.au