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Bullock's Oriole (Icterus bullockii) Female
| 제목: | Bullock's Oriole (Icterus bullockii) Female
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| 해상도: 2048x1753
파일크기: 332199 Bytes
촬영일: 2006:07:03 18:29:17
사진기: NIKON D70s (NIKON CORPORATION)
F number: f/6.3
Exposure: 10/5000 sec
Focal Length: 5000/10
등록시간: 2007:09:27 09:15:44
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Description Bullock's Oriole (Icterus bullockii), Female
Source http://www.flickr.com/photos/20087733@N00/181176591/
Date July 03, 2006 at 18:29
Author Clinton & Charles Robertson from Del Rio, Texas & College Station, TX, USA
URL http://en.wikipedia.org/wiki/Image:Icterus_bullockii.jpg
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Bullock's Oriole (Icterus bullockii)
French: Oriole de Bullock German: Bullocktrupial Spanish: Turpial de Bullock
Other common names: Northern Oriole (when lumped with I. galbula)
Taxonomy: Xanthornus Bullockii Swainson, 1827, “Table land” [of Mexico] = Temascáltepec, México State, Mexico.
DNA data indicate that present species is sister to I. pustulatus. In the past usually treated as conspecific with I. galbula and I. abeillei. Hybridizes extensively with former in a belt from S Canada (Alberta and Saskatchewan) S in Great Plains to S USA (Oklahoma and Texas), but assortative mating (or selection against hybrids) evident at several locations. Smaller race parvus possibly not worthy of recognition, and size difference within species apparently clinal; retained pending further study. Proposed race eleutherus (from N Texas, in S USA), supposedly more orange than nominate, considered to fall within range of variation of latter. Two subspecies tentatively recognized.
Subspecies and Distribution
I. b. bullockii (Swainson, 1827) – breeds SW Canada (from S British Columbia, S Alberta and SW Saskatchewan) S in W USA (except C California S to W Arizona) to N Mexico (Sonora, Chihuahua and Coahuila); winters C Mexico S to C Guatemala.
I. b. parvus van Rossem, 1945 – breeds SW USA (from C California, S Nevada and W Arizona) S to NW Mexico (extreme N Baja California and extreme NW Sonora); winter range uncertain. |
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