Cormorants Info and Hokkaido ID help (1 Viewer)

Otarujef

Master Blurry Bird Phototaker

Supporter

• Jun 25, 2019

• #1

Hi Everyone!

I am hoping to confirm my thoughts on the closeup of 2 Cormorants, because
in my area there are overlaps of Temminck’s (Japanese) and Great Cormorants.

I read through and took notes from a great site and a PDF
concerning Temminck’s (Japanese) and Great Cormorants:

http://www.birdskoreablog.org/?p=14250

https://www.dutchbirding.nl/journal/pdf/DB_1999_21_1.pdf


Well appreciated any help! Jeff

 

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Last edited: Jun 25, 2019

H

HouseCrow

Well-known member

• Jun 25, 2019

• #2

Always a nice challenge, will have a look once home,
Cheers and thx for the Rockthrush reply...

Back to butterfly watching in 30+ celsius drentse aa area.

Gerben

 

Otarujef

Master Blurry Bird Phototaker

Supporter

• Jun 25, 2019

• #3

my pleasure Gerben,

and thanks for any help.

Jeff

 

H

HouseCrow

Well-known member

• Jun 25, 2019

• #4

Back now...
I've been studying them for quite some time now too, and i keep forgetting the key features...
The articles you linked to are very helpful and with some decent photos it's often doable I guess.

My problem was that i didn't have decent photos all the time
I'd say here: 3 & 4: Temminck's because the yellow envelops the eye partly. The pale yellow skin also is pointed towards the rear. yellow base to lower mandible
1 & 2; probably hanedae Great Cormorant, limited amount of bright yellow, rounded edge to the pale yellow skin.
Also the white should reach higher upwards.

But i'm only into this matter since my visit last year, so i'm an eager newcomer still.

cheers,
Gerben

ps. nice to find another japanese birding blog...it's been a while since i've seen one.

 

Last edited: Jun 25, 2019

A

arcadillor

Well-known member

• Jun 26, 2019

• #5

1-2.great cormorant
3-4.Temminck's cormorant

 

Otarujef

Master Blurry Bird Phototaker

Supporter

• Jun 26, 2019

• #6

Gerben and Acadillor.
Thank you both!
That was my thoughts as well.
With Cormorants, the details can be so important, I wanted to check with others. Gerben (ssp. sinesis) for the Great Cormorants tend to be up this way....ssp. hanedae not making it this far north to Hokkaido (USUALLY, of course!), i have read.

BTW links with thanks to Jane Turner

Thanks again,

Jeff

 

Last edited: Jun 26, 2019

Otarujef

Master Blurry Bird Phototaker

Supporter

• Jun 26, 2019

• #7

yikes!

"Back to butterfly watching in 30+ celsius.... "

Yikes pretty hot there!
fry an egg on the sidewalk weather!
:egghead:

Gerben , also the PDF states that
from a distance ,
you can easily see that Temminck's have more of a definite black culmen on the bill,
whereas Great's are Gray.

The difference in bill colour between the two species is noticeable at medium
or even longer ranges.

Click to expand...

haha we will have to put that to the test in the field. That would be wonderful if it aids us greatly like that.

 

Last edited: Jun 26, 2019

H

HouseCrow

Well-known member

• Jun 26, 2019

• #8

Unfortunately i'm back the Netherlands, since mid june last year : (
Now working on the last 2 weeks of my records of last year.
My few Temminck's are not particularly mindblowing. Hopefully I have some cormorant photos left, I will study them with new vigor.


Good luck and if you care to help out with some ID problems still left... (little/common/oriental) cuckoos) feel free to do so.


Looking forward to solving more Japan puzzles...and learning on the go.

have a good time

take care,
Gerben

 

Last edited: Jun 26, 2019