File:Calcareous tufa-encrusted bird nest (Holocene; shores of Mono Lake, eastern California, USA).jpg
![File:Calcareous tufa-encrusted bird nest (Holocene; shores of Mono Lake, eastern California, USA).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Calcareous_tufa-encrusted_bird_nest_%28Holocene%3B_shores_of_Mono_Lake%2C_eastern_California%2C_USA%29.jpg/800px-Calcareous_tufa-encrusted_bird_nest_%28Holocene%3B_shores_of_Mono_Lake%2C_eastern_California%2C_USA%29.jpg?20141121204829)
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Summary
[edit]DescriptionCalcareous tufa-encrusted bird nest (Holocene; shores of Mono Lake, eastern California, USA).jpg |
English: Bird nest (likely a California gull nest) encrusted by calcareous tufa from the shores of Mono Lake, eastern California, USA (Cranbrook Institute of Science collection, Bloomfield Hills, Michigan, USA).
Mono Lake, on the edge of eastern California's Sierra Nevada Mountains, is an unusual lacustrine environment. It is hypersaline and quite alkaline (pH is about 10). Modern Mono Lake is not natural - its size and chemistry have been strongly influenced by human activity, principally by the diversion of water from the inflowing Owens River to the Los Angeles urban area. About three dozen species of birds use Mono Lake as a resting site during migration, as a source of food (brine shrimp), and as a nesting site.
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.
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Date | |
Source | https://www.flickr.com/photos/jsjgeology/15443066455/ |
Author | James St. John, Ohio State University, Newark |
Licensing
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15443066455. It was reviewed on 21 November 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 November 2014
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:48, 21 November 2014 | ![]() | 2,671 × 1,980 (1.67 MB) | Animalparty (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D70s |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/4.5 |
Date and time of data generation | 11:11, 3 May 2009 |
Lens focal length | 70 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 23:00, 4 October 2014 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:11, 3 May 2009 |
Meaning of each component |
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Image compression mode | 4 |
APEX 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 | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
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 | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Supported Flashpix version | 1 |
Image width | 2,671 px |
Image height | 1,980 px |
Date metadata was last modified | 19:00, 4 October 2014 |