Place: Naebo Park, Otaru, Hokkaido, Japan
Date: August 4, 2019
Time: 9 am
Weather: clear, nice.
Hi Everyone!
I have 2 photos here,
which are examples of a fairly regular conundrum I have.
Usually the Frankenstein forehead of the Large-billed Crow
as well as the beak size (ssp. japonensis, here in Hokkaido),
are traits that makes it distinguishable from the Carrion Crow.
Crow #2 (7839) in the photos, appears as expected to be a Carrion crow,
but Crow #1 (4717) in the photos is where I am stuck.
Other photos in my collections are similar shaped head
of a Carrion with an even larger bill.
Could the questionable crow be a juvenile Large-billed (japonensis) or an other subspecies,
such as mandschuricus (finding itself in Kamtchatka and it is said now possibly into Hokkaido)???
Thanks greatly for any clarity!
Jeff
Date: August 4, 2019
Time: 9 am
Weather: clear, nice.
Hi Everyone!
I have 2 photos here,
which are examples of a fairly regular conundrum I have.
Usually the Frankenstein forehead of the Large-billed Crow
as well as the beak size (ssp. japonensis, here in Hokkaido),
are traits that makes it distinguishable from the Carrion Crow.
Crow #2 (7839) in the photos, appears as expected to be a Carrion crow,
but Crow #1 (4717) in the photos is where I am stuck.
Other photos in my collections are similar shaped head
of a Carrion with an even larger bill.
Could the questionable crow be a juvenile Large-billed (japonensis) or an other subspecies,
such as mandschuricus (finding itself in Kamtchatka and it is said now possibly into Hokkaido)???
Thanks greatly for any clarity!
Jeff
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