G’day all, Just thought I’d put the feelers out for any of my southern birding amigos who might be up for a day of birding somewhere around Melbourne or country Vic, or even the good ole WTP. I’ll be down for family Christmas shenanigans from about the 18th of Dec, and staying through til the … Read more
I don’t believe the subject line affects the threading in the archives. It’s done using the message id, which is hidden in the headers. It’s only necessary to reply to a message to have it threaded correctly. A message created from scratch, even with the exact same subject line, will appear as a new thread … Read more
I’ve not noted large aggregations of C-bCu’s in the day but we did flush around 12 roosting together, while conducting nocturnal surveys out near Gunnedah NSW. It was late in the evening, the tree was an isolated individual surrounded by grassland and there were no fruiting trees nearby to my knowledge. The birds were clearly … Read more
Well there is that, but CBCs often call when they are on their own with no others in earshot. They call when they are high up and not being mobbed, and they call when they are flying in circles closer to the ground. I have never heard one call near a fruit tree. The thing … Read more
I think it is more likely to ensure “safety in numbers” especially while in flight. A lone individual is more likely to be mobbed by a nest host species (currawong or magpie) or preyed upon by a predator (large raptor) than one that is part of a flock. An individual calling as it takes flight … Read more