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Search: Posts Made By: CAU
Forum: Bird Taxonomy and Nomenclature Sunday 16th November 2014, 20:43
Replies: 96
Views: 28,116
Posted By CAU
Olsson et al. directly propose the treatment that...

Olsson et al. directly propose the treatment that has been adapted by e.g. IOC (except that they don't comment on the status of intensior). Päckert et al. agree with this, except that they question...
Forum: Bird Taxonomy and Nomenclature Sunday 16th November 2014, 19:20
Replies: 96
Views: 28,116
Posted By CAU
Thanks! Yes, probably too late, but I still don't...

Thanks! Yes, probably too late, but I still don't see the point in lumping a pretty distinctively looking and parapatric (if not sympatric) taxon just based on a study of the mtDNA of a single...
Forum: Bird Taxonomy and Nomenclature Sunday 16th November 2014, 16:22
Replies: 96
Views: 28,116
Posted By CAU
IMO here the authors jumped to the gun a bit too...

IMO here the authors jumped to the gun a bit too quickly… In the most recent study by Wang et al, which is much more thorough than that of Päckert et al, the two taxa (Sooty and Black-browed Tit) are...
Forum: China (including Hong Kong & Macau) Friday 4th July 2014, 21:16
Replies: 1,229
Views: 602,489
Posted By CAU
I'm thinking Kloss's Leaf Warbler. It's a...

I'm thinking Kloss's Leaf Warbler.



It's a first summer male White-bellied Redstart, compare with this:
http://orientalbirdimages.org/search.php?p=9&Bird_ID=2607&Bird_Family_ID=&pagesize=1



It's...
Forum: Bird Identification Q&A Saturday 27th October 2012, 10:04
Replies: 41
Views: 6,054
Posted By CAU
Experienced birdwatchers seem to have really...

Experienced birdwatchers seem to have really differing opinions regarding the id of this falcon... To me it is a Hobby, and I have tried to motivate my opinion in the attached picture.
Forum: Bird Identification Q&A Tuesday 28th February 2012, 13:27
Replies: 19
Views: 2,561
Posted By CAU
The flying bird in the third photo in post #8...

The flying bird in the third photo in post #8 looks like a Dunlin to me. All other birds look like Black-bellied Plovers.
Forum: Bird Taxonomy and Nomenclature Thursday 3rd November 2011, 19:43
Replies: 19
Views: 4,234
Posted By CAU
Based on tens of trips, Finnish birdwatchers have...

Based on tens of trips, Finnish birdwatchers have found that juvenile Indian Spotted Eagles winter commonly in Goa (but probably not older individuals). Steppe Eagle, on the other hand, is quite...
Forum: Bird Identification Q&A Wednesday 26th October 2011, 19:38
Replies: 23
Views: 2,499
Posted By CAU
Hi Magnus, you are probably right. Here's a...

Hi Magnus,
you are probably right. Here's a juvenile from Sichuan showing quite pale edges to the tertials and secondaries (the paleness may be enhanced by the...
Forum: Bird Identification Q&A Wednesday 26th October 2011, 17:28
Replies: 23
Views: 2,499
Posted By CAU
Thanks for the link, I wasn't aware of the other...

Thanks for the link, I wasn't aware of the other thread. Although separating an eastern Black Redstart from a hybrid is extremely difficult (if not impossible), I believe that the almost simultaneous...
Forum: Bird Identification Q&A Wednesday 26th October 2011, 16:57
Replies: 23
Views: 2,499
Posted By CAU
I wonder if it might not be an eastern...

I wonder if it might not be an eastern (phoenicuroides/rufiventris) Black Redstart. Females often show a reddish wash to the...
Forum: Bird Identification Q&A Saturday 1st October 2011, 18:53
Replies: 9
Views: 1,100
Posted By CAU
It looks uniformly dark even in a lightened...

It looks uniformly dark even in a lightened picture. My bet would be Marsh Harrier.
Forum: Bird Identification Q&A Saturday 1st October 2011, 18:33
Replies: 15
Views: 2,101
Posted By CAU
You'll also have to remember that the breeding...

You'll also have to remember that the breeding period of Tawny Eagle is probably much longer than that of more northern raptors (i.e. there's a lot of variation in the real age of the "same"...
Forum: Bird Identification Q&A Saturday 1st October 2011, 10:31
Replies: 15
Views: 2,101
Posted By CAU
The bird in your link is adult-type (and...

The bird in your link is adult-type (and interestingly it shows a pale throat). I would be interested in seeing pictures of uniformly mid-brown (milk chocolate brown) juvenile Tawny Eagles.

Here are...
Forum: Bird Identification Q&A Friday 30th September 2011, 15:44
Replies: 15
Views: 2,101
Posted By CAU
Hi Tib! You are correct about the ageing. I'll...

Hi Tib!



You are correct about the ageing. I'll cite a part of the caption of Plate 436 in Forsman's guide:

"Juvenile in worn plumage (2nd cy spring). Aged by uniformly worn plumage, in particular...
Forum: Bird Identification Q&A Thursday 29th September 2011, 19:20
Replies: 15
Views: 2,101
Posted By CAU
I'd believe that it is a spring 2cy Steppe Eagle....

I'd believe that it is a spring 2cy Steppe Eagle. Despite the short looking gape, the plumage is mid-brown (not especially tawny or sand coloured), the throat is pale and the bill doesn't look...
Forum: Bird Identification Q&A Wednesday 24th August 2011, 20:25
Replies: 51
Views: 7,200
Posted By CAU
In strong backlight the secondaries usually...

In strong backlight the secondaries usually appear darker than the primaries, because they overlap more and and are thus less translucent. The subject bird does not appear to be strongly backlit, but...
Forum: Bird Identification Q&A Wednesday 24th August 2011, 19:14
Replies: 51
Views: 7,200
Posted By CAU
I'm not sure of the id, as blurry pictures can...

I'm not sure of the id, as blurry pictures can give a wrong impression (and sometimes I get a wrong impression even from perfectly good pictures), but two features that speak against RLB are the...
Forum: Bird Identification Q&A Monday 22nd August 2011, 22:25
Replies: 13
Views: 3,506
Posted By CAU
Thanks Peter, I might sometimes have been right...

Thanks Peter, I might sometimes have been right in easy cases, but this time I believe I was wrong. On a second look, you are probably right about the bird balancing on the seaweed, making the legs...
Forum: Bird Identification Q&A Monday 22nd August 2011, 17:56
Replies: 13
Views: 3,506
Posted By CAU
Apparently a new blog entry has removed the...

Apparently a new blog entry has removed the photos from the front page, but you can still see them here:
http://mydogoscar.com/birdspot/2011/08/18/an-easy-id/

I also took the liberty to attach...
Forum: Bird Identification Q&A Monday 22nd August 2011, 17:42
Replies: 13
Views: 3,506
Posted By CAU
I agree with Julian's views, to me the bird looks...

I agree with Julian's views, to me the bird looks like a Common Tern, despite the opinion of the majority of the others, because
1. the legs look way too long for Arctic Tern
2. also bill and neck...
Forum: Bird Identification Q&A Sunday 21st August 2011, 19:02
Replies: 7
Views: 1,136
Posted By CAU
A Blyth's Reed Warbler would have a shorter...

A Blyth's Reed Warbler would have a shorter primary projection and a smaller bill. The bird looks like a Basra Reed Warbler to me.
Forum: Bird Identification Q&A Thursday 18th August 2011, 17:11
Replies: 11
Views: 2,416
Posted By CAU
A yellowish iris still doesn't rule out LLB, as...

A yellowish iris still doesn't rule out LLB, as (like you certainly know) immatures have pale, sometimes rather yellowish...
Forum: Bird Identification Q&A Thursday 18th August 2011, 16:46
Replies: 9
Views: 1,488
Posted By CAU
IMO the bird looks like an adult Reed Warbler. In...

IMO the bird looks like an adult Reed Warbler. In late summer adult Reed Warblers are worn and thus often more greyish than in spring. Also the alula can be paler due to wear. The mid-brown iris...
Forum: Bird Identification Q&A Thursday 18th August 2011, 16:12
Replies: 11
Views: 2,416
Posted By CAU
It's difficult to be sure, but to me it looks...

It's difficult to be sure, but to me it looks more like a Long-legged Buzzard. The cream-coloured head and forebody fit LLB best (Honey Buzzards can sometimes also be pale, but at least pale...
Forum: Bird Identification Q&A Thursday 18th August 2011, 16:06
Replies: 14
Views: 1,435
Posted By CAU
IMO the buzzard is unequivocally a juvenile...

IMO the buzzard is unequivocally a juvenile Common Buzzard. It has very dark lesser underwing coverts, with a very contrasting pale bar formed by the median (and the bases of the greater) underwing...
Showing results 1 to 25 of 1000
 


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