File:Campephilus principalis (ivory-billed woodpecker).jpg
Original file (1,580 × 2,404 pixels, file size: 1.05 MB, MIME type: image/jpeg)
Summary
DescriptionCampephilus principalis (ivory-billed woodpecker).jpg |
Campephilus principalis (Linnaeus, 1758) - female ivory-billed woodpecker (mount, Field Museum of Natural History, Chicago, Illinois, USA). Recorded calls & possible sightings of the ivory-billed woodpecker in southern America in recent years have been received with much excitement by ornithologists & the general public (listen to a genuine 1935 recording made in Louisiana - www.birds.cornell.edu/ivory/multimedia/sounds/knownsounds...) (listen to a 2005 recording made in Arkansas - turn up your computer speaker - www.birds.cornell.edu/ivory/multimedia/sounds/arkansasken...). The species, Campephilus principalis, has been considered extinct or near-extinct for much of the 20th century. It originally lived in southeastern America and Cuba (mitochondrial DNA analysis has suggested that the extinct or near-extinct Cuban form is a distinct species, Campephilus bairdii; the ivory-billed woodpecker, the Cuban ivory-billed woodpecker, and the imperial woodpecker (Campephilus imperialis) diverged from each during the late Early Pleistocene, at about 1 m.y. ago; see Fleischer et al., 2006, Biology Letters 2: 466-469). The ivory-bill is a very large, black-and-white woodpecker that resembles another large bird, the still-living pileated woodpecker (Dryocopus pileatus - www.lies.com/wp/images/pileated.jpg). The adult male ivory-bill has a wedge of intense red coloration at the back of the head. Juvenile and the female ivory-bills lack the reddish-colored wedge. Classification: Animalia, Chordata, Vertebrata, Aves, Piciformes, Picidae Birds are small to large, warm-blooded, egg-laying, feathered, bipedal vertebrates capable of powered flight (although some are secondarily flightless). Many scientists characterize birds as dinosaurs, but this is consequence of the physical structure of evolutionary diagrams. Birds aren’t dinosaurs. They’re birds. The logic & rationale that some use to justify statements such as “birds are dinosaurs” is the same logic & rationale that results in saying “vertebrates are echinoderms”. Well, no one says the latter. No one should say the former, either. However, birds are evolutionarily derived from theropod dinosaurs. Birds first appeared in the Triassic or Jurassic, depending on which avian paleontologist you ask. They inhabit a wide variety of terrestrial and surface marine environments, and exhibit considerable variation in behaviors and diets. |
Date | |
Source | Campephilus principalis (ivory-billed woodpecker) 2 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15391374408. It was reviewed on 20 October 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
20 October 2014
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copyright license
Creative Commons Attribution 2.0 Generic
source of file
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inception
11 June 2010
captured with
Nikon D70s
media type
image/jpeg
checksum
ecc8152330647a42af0897e704322f5325e22ef5
data size
1,103,517 byte
height
2,404 pixel
width
1,580 pixel
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:18, 20 October 2014 | 1,580 × 2,404 (1.05 MB) | FunkMonk | Transferred from Flickr via Flickr2commons |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D70s |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/4.5 |
Date and time of data generation | 16:45, 11 June 2010 |
Lens focal length | 42 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 18:05, 19 October 2014 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 16:45, 11 June 2010 |
Meaning of each component |
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Image compression mode | 4 |
Exposure bias | 0 |
Maximum land aperture | 4.3 APEX (f/4.44) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, auto mode |
DateTime subseconds | 80 |
DateTimeOriginal subseconds | 80 |
DateTimeDigitized subseconds | 80 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 63 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Supported Flashpix version | 1 |
Image width | 1,580 px |
Image height | 2,404 px |
Date metadata was last modified | 14:05, 19 October 2014 |