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Japanese Bush Warbler or other? (1 Viewer)

Otarujef

Just dont call me late for dinner...
Place: Naebo Park, Otaru, Hokkaido, Japan
Date: 2020-5-3
Time: 11:00 am
Weather: Sunny 12 C

Hi Everyone!

In the field, it was hinted that
this is a Japanese Bush Warbler.
It seems a little light in color.
Also the yellow under the rump
is throwing me off.
Any thoughts or insights
are well appreciated!

Thanks!

Jeff :D
 

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Otarujef

Just dont call me late for dinner...
Eastern Crowned Warbler

Andy,

Thanks greatly for your reply.
You are correct.
Both the Bush and Eastern Crowned were in the same area singing,
as well as another Warbler that sounds like an insect.
Thanks for helping me sort that out.
I have only seen the Bush Warbler,
so that is why i need such help!
Now I can know for the next visit. :)

Thanks again, Be Safe and God Bless You,

Jeff :D
 
Last edited:

SteveMM

Well-known member
Place: Naebo Park, Otaru, Hokkaido, Japan
Date: 2020-5-3
Time: 11:00 am
Weather: Sunny 12 C

Hi Everyone!

In the field, it was hinted that
this is a Japanese Bush Warbler.
It seems a little light in color.
Also the yellow under the rump
is throwing me off.
Any thoughts or insights
are well appreciated!

Thanks!

Jeff :D

A Japanese Bush Warbler for me with all the rufous in the wings and the long tail. Eastern Crowned would have pale lower mandible and wingbar. I think northern birds are supposed to be paler/greyer-headed than southern ones. They anyway show some buff tones to the hindflanks.

Steve
 

Andy Adcock

Well-known member
England
A Japanese Bush Warbler for me with all the rufous in the wings and the long tail. Eastern Crowned would have pale lower mandible and wingbar. I think northern birds are supposed to be paler/greyer-headed than southern ones. They anyway show some buff tones to the hindflanks.

Steve

Always happy to learn, can't see any images for the BW that show this combination of colours?
 

Otarujef

Just dont call me late for dinner...
Thanks for the input Steve and Andy!

I am still confused.....
as the photos I have, and what I saw
look closer to the Eastern Crown.

It may be a difference being to subspecies
here in Hokkaido such as Horornis diphone viridis

something similar to the photos I have as far as Bush Warblers go
(but still a little different than what I have) ==>

http://orientalbirdimages.org/image...chung_city_county_taiwan16th_january_2019.jpg

the classic olive green brown back Bush Warbler is this ==>

http://orientalbirdimages.org/images/data/img_8010.jpg

As conveyed to me by a 40+ years of birding guide for our small local club.
The three Warblers all in the same spot were:

1. Japanese Bush Warbler
2. Lanceolated Grasshopper Warbler
3. Eastern Crowned Warbler

I knew the sound of the Bush and the Lanceolated Warblers.
The Lanceolated Warbler was sounding off
10 meters away from where I was when I took this photo.
So It had to be the Bush or The Eastern-Crowned Warbler.


Any added thoughts?
Thanks greatly

Jeff :D
 
Last edited:

Grahame Walbridge

Well-known member
There's no doubt its a Japanese Bush Warbler as Steve has already confirmed, likely ssp. cantans which is the resident form throughout much of Japan including Hokkaido where, birds are said to be greyer, overlapping in plumage with riukiuensis from Sakhalin Is. Warmer tones to the lower flanks/under tail coverts should exclude a migrant of the latter form. Taxonomy is very complex and may involve multiple species!

For the other warbler singing like an insect I would suggest Asian Stubtail as a very likely candidate https://www.xeno-canto.org/190290 Sorry crossed-post, Lanceolated is also very likely which also fits the bill.

Grahame
 
Last edited:

Otarujef

Just dont call me late for dinner...
Thanks so Much!

WOW!

Thank you Everyone!
for all the excellent details
and your effort and time to help me understand.
Very Greatly Appreciated :)

God Bless and Be Safe,

Jeff :D
 
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