Cinuyep:2014-04-29 01 Northwestern crow (Corvus brachyrhynchos caurinus).jpg

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Summary

Description
English: Northwestern crow (Corvus brachyrhynchos caurinus - hybrid intergrades between Corvus brachyrhynchos and Corvus caurinus species of the American crow), adult, at Steveston Harbor, British Columbia, Canada on April 29, 2014.

The original proposal of the Northwestern crow (Corvus brachyrhynchos caurinus) as a separate hybrid intergrade species was proposed in 2018. "Crows over a wide area in the west of British Columbia, Canada and the far northwest of Washington, USA, are hybrid intergrades between Corvus brachyrhynchos and Corvus caurinus (ref: Slager, D. L., et al. 2018. Cryptic and extensive hybridization between ancient lineages of American crows. BioRxiv preprint).

However, current 2021 taxonomy considers the northwestern crow as a geographic variation of the western crow (C. b. hesperis).

“C. b. caurinus (Baird, 1858) – northwestern crow: of the Pacific temperate rain forests was formerly considered a distinct species as C. caurinus, averaging smaller in size than other American crows with a distinctly hoarser call. It forms a hybrid swarm with American crow (sensu stricto) in coastal Washington and British Columbia. The American Ornithological Society lumped the northwestern crow with the American crow in 2020. It is now considered a geographic variation within C. b. hesperis.” – American crow - Wikipedia
Date
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Author Gordon Leggett
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Photo: Gordon Leggett / Wikimedia Commons / 
CC BY-SA 4.0
Photo: Gordon Leggett / Wikimedia Commons
Camera location49° 07′ 27.22″ N, 123° 11′ 10.93″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This image has been assessed under the valued image criteria and is considered the most valued image on Commons within the scope: Northwestern crow (Corvus caurinus), adult. You can see its nomination here.

Captions

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Northwestern crow (Corvus brachyrhynchos caurinus, now considered a geographic variation within the western crow, C. b. hesperis), adult, at Steveston Harbor, British Columbia, Canada

Items portrayed in this file

depicts English

crow English

Corvus caurinus

creator English

Some value without a Wikidata item

author name string English: Gordon Leggett
Wikimedia username English: GRDN711
URL: https://commons.wikimedia.org/wiki/user:GRDN711

copyright status English

copyrighted English

inception English

29 April 2014

coordinates of the point of view English

49°7'27.221"N, 123°11'10.932"W

captured with English

Nikon D7100 English

exposure time English

0.00125 second

f-number English

7.1

focal length English

200 millimetre

ISO speed English

200

media type English

image/jpeg

instance of English

photograph English

checksum English

462335c5a3e8666d78e76d0859267dbb202fe1ea

determination method or standard English: SHA-1

data size English

8,398,440 byte

height English

3,461 pixel

width English

5,192 pixel

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現在のウェㇾソン06:52, 20 8 チュㇷ゚ 202106:52, 20 8 チュㇷ゚ 2021時点におけるウェㇾソンのサムネイル5,192 × 3,461 (8.01 MB)wikimediacommons>GRDN711Lowered highlight in front slightly. Crow type is Northwestern crow (Corvus brachyrhynchos caurinus).

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