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Showing results 1 to 25 of 1000
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Search: Posts Made By: njlarsen
Forum: Bird Identification Q&A Today, 16:10
Replies: 3
Views: 72
Posted By njlarsen
That would be my guess as well Niels

That would be my guess as well

Niels
Forum: Bird Identification Q&A Sunday 5th April 2020, 21:05
Replies: 17
Views: 391
Posted By njlarsen
I think there was a rearrangement of that with...

I think there was a rearrangement of that with DNA data that came out in 2018. Given that HBW was based on a system of assigning points based on phenotype and not really had a good way to include DNA...
Forum: Bird Identification Q&A Sunday 5th April 2020, 19:00
Replies: 17
Views: 391
Posted By njlarsen
vividior is shown with a drawing in the TT book...

vividior is shown with a drawing in the TT book by Kenefick, as is chivi and northern (current red-eye) forms. Notice that both Clements and IOC has the first two of these in the Chivi species....
Forum: Bird Identification Q&A Sunday 5th April 2020, 16:01
Replies: 17
Views: 391
Posted By njlarsen
Link works for me? It essentially states the...

Link works for me?

It essentially states the same about brown eyes in an adult is a sign of Chivi. Unfortunately, in juvenile Red-eyes, the iris is brown or grey-brown. Pyle did not state how...
Forum: Bird Identification Q&A Sunday 5th April 2020, 15:05
Replies: 11
Views: 225
Posted By njlarsen
Loss of income is a huge issue there and in a lot...

Loss of income is a huge issue there and in a lot of other places.

Niels
Forum: Bird Identification Q&A Sunday 5th April 2020, 01:37
Replies: 11
Views: 225
Posted By njlarsen
The book I was referring to was the SASOL. I do...

The book I was referring to was the SASOL. I do not have a more local book to where you took this image. I have not been able to find a truly African photo of RrSw, but those photos I could find were...
Forum: Bird Identification Q&A Sunday 5th April 2020, 00:32
Replies: 11
Views: 225
Posted By njlarsen
Do take a look at photos but I would say Mosque:...

Do take a look at photos but I would say Mosque: Red-rumped in the SA book is drawn to have a pale area above the dark lore which your photo does not show and which the drawing of MS doesn't...
Forum: Bird Identification Q&A Saturday 4th April 2020, 20:35
Replies: 5
Views: 212
Posted By njlarsen
Chimney has not been registered in the reserve...

Chimney has not been registered in the reserve according to the Ebird bar chart ...

Niels
Forum: Bird Identification Q&A Saturday 4th April 2020, 18:47
Replies: 3
Views: 145
Posted By njlarsen
I believe this is correct. Apart from that I am...

I believe this is correct. Apart from that I am not sure I can help more than I have already.

Niels
Forum: Bird Identification Q&A Saturday 4th April 2020, 16:09
Replies: 5
Views: 212
Posted By njlarsen
Here is the bar chart of birds in the El Copal...

Here is the bar chart of birds in the El Copal reserve: https://ebird.org/barchart?r=L2284561&yr=all&m=

Vaux's Swift and Grey-rumped seems to be the main contenders

Niels
Forum: Bird Identification Q&A Saturday 4th April 2020, 01:54
Replies: 3
Views: 145
Posted By njlarsen
Restall (birds of N SA) describes Plain-bellied...

Restall (birds of N SA) describes Plain-bellied as having "bronzy to coppery reflections on uppertail coverts and tail".
On the other hand, I am not sure that this photo shows a forked tail. It...
Forum: Bird Identification Q&A Wednesday 1st April 2020, 19:19
Replies: 13
Views: 353
Posted By njlarsen
I am not sure this photo can be safely...

I am not sure this photo can be safely identified. The book says that some individuals cannot be safely identified even in the hand!

Niels
Forum: Canon Wednesday 1st April 2020, 00:29
Replies: 15
Views: 784
Posted By njlarsen
I kind of understand the choice of 7 meters for...

I kind of understand the choice of 7 meters for the lens alone, but why not add a little distance with each of the converters? I assume that would be why you need converters anyway, that the birds...
Forum: Bird Identification Q&A Wednesday 1st April 2020, 00:17
Replies: 5
Views: 223
Posted By njlarsen
As someone who has never been to that part of the...

As someone who has never been to that part of the world and do not have an Argentina field guide -- that was exactly my reaction.

Niels
Forum: Bird Identification Q&A Tuesday 31st March 2020, 18:05
Replies: 13
Views: 353
Posted By njlarsen
Is there a photo of the upperside of the hummer?...

Is there a photo of the upperside of the hummer?
Compare https://ebird.org/species/dushum1 https://ebird.org/species/brbhum/

Niels
Forum: Bird Identification Q&A Tuesday 31st March 2020, 15:21
Replies: 13
Views: 353
Posted By njlarsen
Dusky is common around Cholula:...

Dusky is common around Cholula: https://ebird.org/map/dushum1?neg=true&env.minX=&env.minY=&env.maxX=&env.maxY=&zh=false&gp=false&ev=Z&mr=1-12&bmo=1&emo=12&yr=all&byr=1900&eyr=2020
But so is...
Forum: Bird Identification Q&A Tuesday 31st March 2020, 14:48
Replies: 13
Views: 353
Posted By njlarsen
Regarding the Hummer I am not sure. To narrow it...

Regarding the Hummer I am not sure. To narrow it down, here is the bar chart of birds in Puebla: https://ebird.org/barchart?r=MX-PUE&yr=all&m=
Well, doesn't narrow it much, this is the list of...
Forum: Bird Identification Q&A Tuesday 31st March 2020, 14:40
Replies: 13
Views: 353
Posted By njlarsen
My immediate impression was a towhee, and I can...

My immediate impression was a towhee, and I can make Canyon Towhee as shown in Howell and Webb fit.

Remember that in Mexico, Buff-thr Saltator has a broad black horseshoe surrounding the throat...
Forum: Bird Identification Q&A Tuesday 31st March 2020, 12:30
Replies: 13
Views: 353
Posted By njlarsen
Roadside hawk for the raptor I think Niels

Roadside hawk for the raptor I think

Niels
Forum: Bird Identification Q&A Monday 30th March 2020, 02:45
Replies: 7
Views: 239
Posted By njlarsen
I think that clinches it Niels

I think that clinches it

Niels
Forum: Opus Discussion Area Monday 30th March 2020, 01:24
Replies: 170
Sticky: excellent pages
Views: 79,700
Posted By njlarsen
Chestnut-backed Tanager...

Chestnut-backed Tanager (https://www.birdforum.net/opus/Chestnut-backed_Tanager)

Niels
Forum: Bird Identification Q&A Monday 30th March 2020, 00:47
Replies: 8
Views: 157
Posted By njlarsen
Already in post 2 I stated it could not be the...

Already in post 2 I stated it could not be the carib. However, I could not remember if there was a third option it could have been.

Niels
Forum: Bird Identification Q&A Monday 30th March 2020, 00:20
Replies: 7
Views: 239
Posted By njlarsen
That seems to be a quote from the new Lynx guide...

That seems to be a quote from the new Lynx guide to the area which has the two species as split. It is saying so for migration period though, and it may be slightly early for that?

The orange tones...
Forum: Cameras And Photography Monday 30th March 2020, 00:12
Replies: 9
Views: 285
Posted By njlarsen
The sensor size of the p900 is 1/2.3" (6.17 x...

The sensor size of the p900 is 1/2.3" (6.17 x 4.55 mm) while the FZ1000 has a 1 inch sensor. That should account for something in iso sensitivity.

Niels
Forum: Bird Identification Q&A Sunday 29th March 2020, 21:37
Replies: 8
Views: 157
Posted By njlarsen
compare:...

compare: https://www.birdforum.net/opus/Green_Mango and https://ebird.org/species/greman1

Niels
Showing results 1 to 25 of 1000
 


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