File:Barrow's Goldeneye Drake Seedskadee NWR (16656643482).jpg
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Summary
[edit]DescriptionBarrow's Goldeneye Drake Seedskadee NWR (16656643482).jpg |
On Seedskadee NWR, common goldeneyes are abundant during the winter months on open portions of the Green River. Mixed in with the common goldeneyes, are a few Barrow's goldeneye. They can be difficult to distinguish from the common goldeneye, but with a close view or the aid of a spotting scope, the crescent teardrop between the eye and the bill seperates the Barrow's drake from a common goldeneye drake, which has an oval or round patch instead. Depending on the lighting, the Barrow's drake has a purplish head while the Common is green. They appear to concentrate on the abundant crayfish for a primary food source during the winter on Seedskadee NWR. Cool Facts: The Barrow's Goldeneye is rather long-lived for a duck, with one individual reaching 18 years of age. Most females do not breed until they are three years old. Like the Common Goldeneye, the Barrow's Goldeneye is not too particular about holding on to its own offspring. A female may lay eggs in the nest of another goldeneye or other species of cavity-nesting duck. Once the ducklings come out of the nest, the broods of different females often come together and are taken care of by a single female. The young ducklings are highly independent, feeding on their own, and require little parental care. For a species with such widely separated populations, it is perhaps surprising that the Barrow's Goldeneye shows little variation from place to place. Those breeding in North America are essentially identical on the Atlantic and Pacific coasts. Female Barrow's Goldeneyes breeding in Iceland do not get as extensively yellow bills as the North American birds, but have only a yellow or orangish band on the outer third of the otherwise dusky bill. <a href="http://www.allaboutbirds.org/guide/Barrows_Goldeneye/lifehistory" rel="nofollow">www.allaboutbirds.org/guide/Barrows_Goldeneye/lifehistory</a> Tom Koerner/USFWS |
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Date | |||
Source | Barrow's Goldeneye Drake Seedskadee NWR | ||
Author | USFWS Mountain-Prairie | ||
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This image was originally posted to Flickr by USFWS Mountain Prairie at https://flickr.com/photos/51986662@N05/16656643482 (archive). It was reviewed on 17 May 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 May 2018
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This image or recording is the work of a U.S. Fish and Wildlife Service employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. For more information, see the Fish and Wildlife Service copyright policy.
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current | 09:40, 17 May 2018 | ![]() | 2,898 × 2,010 (2.7 MB) | OceanAtoll (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D300 |
Author | Picasa |
Exposure time | 1/500 sec (0.002) |
F-number | f/11 |
ISO speed rating | 800 |
Date and time of data generation | 17:52, 8 February 2015 |
Lens focal length | 500 mm |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.10 |
File change date and time | 12:00, 12 February 2015 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 17:52, 8 February 2015 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 5.3 APEX (f/6.28) |
Metering mode | Spot |
Light source | Fine weather |
Flash | Flash did not fire |
DateTime subseconds | 08 |
DateTimeOriginal subseconds | 08 |
DateTimeDigitized subseconds | 08 |
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 | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 750 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Unique image ID | 79f09a7249c23720da30608277640f8b |
IIM version | 4 |