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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 Tuesday 16th October 2018, 04:08
Replies: 6
Views: 156
Posted By njlarsen
Agree on Manakin (sp.) for #6. I think you need...

Agree on Manakin (sp.) for #6.
I think you need to check the pages for Tanagers re no 4. (I have no books with me at the moment).

Niels
Forum: Bird Taxonomy and Nomenclature Sunday 14th October 2018, 01:54
Replies: 3
Views: 272
Posted By njlarsen
I was thinking of the proposed cases where a...

I was thinking of the proposed cases where a hybridization event takes place, followed by backcross of the female offspring to the male parental species and due to some advantage of the mitocondrial...
Forum: California Saturday 13th October 2018, 20:11
Replies: 6
Views: 217
Posted By njlarsen
No problem. I am currently in CA and has not...

No problem.

I am currently in CA and has not caught up with this form. I did catch up with the desert form of Bighorn Sheep.

Niels
Forum: Bird Taxonomy and Nomenclature Saturday 13th October 2018, 18:40
Replies: 3
Views: 272
Posted By njlarsen
I believe there has been a number of studies...

I believe there has been a number of studies published casting doubt on this statement.

Niels
Forum: Books, Magazines, Publications, Video & DVD Saturday 13th October 2018, 05:12
Replies: 21
Views: 623
Posted By njlarsen
I think regarding size, covering a much larger...

I think regarding size, covering a much larger area with necessarily some additional species, I am not surprised that a good guide becomes larger when for example comparing with the CR or Panama...
Forum: Bird Identification Q&A Tuesday 9th October 2018, 03:35
Replies: 11
Views: 310
Posted By njlarsen
Why do I see 5 have a much smaller bill than any...

Why do I see 5 have a much smaller bill than any woodpecker? Looks more like a warbler or Bananaquit bill to me

Niels
Forum: California Tuesday 9th October 2018, 03:30
Replies: 6
Views: 217
Posted By njlarsen
Hello Wim, the last two of your lines actually...

Hello Wim, the last two of your lines actually refer to the same taxon: the belli subspecies of whatever taxon that belongs to. Anyway, I am interested in the subspecies (not species) or in other...
Forum: Books, Magazines, Publications, Video & DVD Monday 8th October 2018, 22:24
Replies: 21
Views: 623
Posted By njlarsen
I agree it looks like a decent alternative if you...

I agree it looks like a decent alternative if you want to cover the entire area between Mexico and Colombia. What I do not understand on this book, and especially for the Fagan and Komar book that...
Forum: Bird Identification Q&A Friday 5th October 2018, 00:15
Replies: 10
Views: 314
Posted By njlarsen
Sorry, i must be stressed, common black hawk is...

Sorry, i must be stressed, common black hawk is what I am talking about

My notes say I have seen ztha 7 times in 5 countries- some observations was of more than 1 bird

Niels
Forum: Bird Identification Q&A Thursday 4th October 2018, 23:12
Replies: 10
Views: 314
Posted By njlarsen
Two observations in favor of GBH: white tip of...

Two observations in favor of GBH: white tip of tail and yellow feet reaching into the white band on the tail - at least according to my Sibley app

Niels
Forum: Bird Identification Q&A Thursday 4th October 2018, 21:56
Replies: 10
Views: 314
Posted By njlarsen
CBHa certainly is what I am reminded of, does not...

CBHa certainly is what I am reminded of, does not remind of the shape of a Zone-tailed.

Niels
Forum: Bird Identification Q&A Thursday 4th October 2018, 16:41
Replies: 5
Views: 205
Posted By njlarsen
I believe the reason Andy stated "Willow or Alder...

I believe the reason Andy stated "Willow or Alder Flycatcher" is that those two usually are impossible to separate except by voice.

Niels
Forum: California Thursday 4th October 2018, 14:00
Replies: 6
Views: 217
Posted By njlarsen
I do not know where my brain was at the time I...

I do not know where my brain was at the time I wrote this: I meant to write Bell's Sparrow and for some reason warbler came out.

Niels
Forum: California Thursday 4th October 2018, 02:10
Replies: 6
Views: 217
Posted By njlarsen
Bell's Sparrow

Hello,
the belli subspecies, what is the habitat and how does one get to see one of those? It seems for example that it is regularly reported even at this time of year from the UC Riverside...
Forum: Bird Identification Q&A Thursday 4th October 2018, 00:21
Replies: 10
Views: 201
Posted By njlarsen
By Range, the Smokies could also hold blackcap...

By Range, the Smokies could also hold blackcap Chickadee, so are we sure on this one being Carolina? (Carolina are common in lowlands of TN).

Niels
Forum: Bird Identification Q&A Wednesday 3rd October 2018, 21:00
Replies: 27
Views: 629
Posted By njlarsen
https://neotropical.birds.cornell.edu/Species-Acco...

https://neotropical.birds.cornell.edu/Species-Account/nb/species/grhkit1/multimedia/photos shows some photos that are pale-ish, but not strongly yellow

Niels
Forum: Bird Identification Q&A Sunday 30th September 2018, 21:14
Replies: 8
Views: 403
Posted By njlarsen
I remembered I did have a similar problem once....

I remembered I did have a similar problem once. See this thread and especially the last post: https://www.birdforum.net/showthread.php?t=312435

Niels
Forum: Bird Identification Q&A Saturday 29th September 2018, 23:09
Replies: 10
Views: 358
Posted By njlarsen
I was surprised by this one, so used a little...

I was surprised by this one, so used a little time on images in the gallery. Most images of brant's showed a bill of equal length to the head behind the base of the bill with Pelagic having a bill...
Forum: Bird Identification Q&A Saturday 29th September 2018, 20:26
Replies: 6
Views: 271
Posted By njlarsen
Please note that every place I have looked, this...

Please note that every place I have looked, this species has identical plumage for male and female. This is a younger bird starting to moult into its adult plumage.

Niels
Forum: Bird Identification Q&A Saturday 29th September 2018, 02:48
Replies: 19
Views: 808
Posted By njlarsen
BNA shows a juvenile where the text says Rufous...

BNA shows a juvenile where the text says Rufous is also mentioned in the Sibley app.

Additional, the white braces are mentioned as the main distinguishing characteristic

Niels
Forum: Information Wanted Saturday 29th September 2018, 00:31
Replies: 14
Views: 652
Posted By njlarsen
[QUOTE=andyadcock;3766896] There is two parts to...

[QUOTE=andyadcock;3766896]

There is two parts to the equation: can afford $10K if it is outstanding enough vs will want to use that kind of money for more mundane outings. I could find that kind of...
Forum: Birds & Birding Thursday 27th September 2018, 14:33
Replies: 10
Views: 497
Posted By njlarsen
Well, I would expect you would see a number of...

Well, I would expect you would see a number of good birds if you walk 2,800km ;)

I don't know the answer to your question, but Chile is definitely a good place to visit.

Niels
Forum: Computers, Birding Software And The Internet Thursday 27th September 2018, 14:27
Replies: 2
Views: 212
Posted By njlarsen
https://www.birdforum.net/showthread.php?t=366059 ...

https://www.birdforum.net/showthread.php?t=366059

Niels
Forum: Panasonic Thursday 27th September 2018, 00:21
Replies: 28
Views: 1,018
Posted By njlarsen
I have not seen this animal but I have seen a...

I have not seen this animal but I have seen a 300-800 zoom from sigma IRL. The lens took one backpack, and the camera another. Not my cup of tea!

Niels
Forum: Bird Identification Q&A Wednesday 26th September 2018, 23:54
Replies: 3
Views: 148
Posted By njlarsen
A few more comments: 1 this looks like a bird...

A few more comments:
1 this looks like a bird that is stained by something, likely something present were it sought food. I had a Cattle egret a few years ago that slowly lost its almost black...
Showing results 1 to 25 of 1000
 


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