Leaden or Satin?

["Philip Veerman" <>]

I agree with Martin, especially in woodland, where the Leaden is far more common, rather than forest habitat. Maybe not 99:1. Sorry but beyond that, I see that comment as circular reasoning, as in self fulfilling. If that is the reason, then how do you know it has stood me in good stead.

 

I suspect I was over generous in my text in The GBS Report by stating for the Satin Flycatcher: A couple of the records for this species more closely resemble the occurrence pattern of the Leaden Flycatcher. There is the possibility of misidentification of these two species. If they were wrong, then the real difference between the two species’ patterns would be more distinct.

 

Because the Leaden Flycatcher is by far the more common one in the suburbs, the proportion of wrong ids given as that, is far smaller (relative to that most were correctly identified as that species), so the data for them will be mostly accurate. Because the Satin Flycatcher is much less common in the suburbs, the proportion of wrong ids given as them will be greater, so the data for them may will be far more skewed by wrong ids.

 

Thanks for Geoffrey for finding the Graeme Chapman article in Wingspan reference I was thinking of..

 

Philip

 

-----Original Message-----
From: Martin Butterfield [
Sent: Sunday, 22 December 2013 1:59 PM
To: Philip Veerman
Cc: ; COG List
Subject: Re: [canberrabirds] Leaden or Satin?

I recall some years ago a very experienced member of COG commented that "if there is any doubt about whether a bird is Leaden Flycatcher or Satin Flycatcher the odds are about 99:1 that it is Leaden".   That 'rule' has stood me in good stead since then.

Martin

On 22 December 2013 13:27, Philip Veerman <> wrote:

Thanks. About my input to this, it was passing on findings or viewpoints from others (certainly not my ideas). I think I recall Graeme Chapman had a good article in Wingspan some years ago that properly explained this idea (or better than field guides and HANZAB does). Can someone find that? I'm not going to trawl through them all now.

 

I will try to save time and send a copy of this to him..........

 

The difference is I think hard to interpret when the line appears rather perpendicular. I can't tell from this. A couple photos in this case are not as good as being there but I would still favour on borderline probabilities that it is a Leaden.

 

Philip