Image:HenslowsSparrow23.jpg

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Description

Ammodramus henslowii (familia Emberizidae, ordo Passeriformes, parvclassis Neognathae, classis Aves).

English: Henslow’s Sparrow
Français : Bruant de Henslow
Notes
This image viewed with a 2:1 reduction.
This image viewed with a 2:1 reduction.
  1. The original version was incorrectly rotated 90° clockwise (250x174, landscape), this was adapted by a simple counter-clockwise rotation in a first edit to get the correct orientation (174x250, portrait).
  2. Due to the limited original resolution, its resolution was doubled (1:2) in a second edit to 348x500, just to allow better fitting in Wikipedia articles where the image is used in animal taxoboxes with a display width between 200px and 250px (depending on Wikipedia projects), using an adaptive filter that keeps the original contrasts and colors, but avoids jitters. The image will not display very well at its current doubled resolution, but will be much better than what the Wikimedia Commons image loader produced when increasing the requested size of the image, and will display no visible change at 50% (see this image on the right). Typically, this image will display well up to 250px wide.
  3. When Commons will include an adaptative isotropic filter in its image server for the images that must be displayed at higher resolution, such edit wouldn't be necessary. Currently, Commons does not return a larger image (it only creates reduced thumbnails), but specifies the image size in HTML/CSS and let browsers grow the image (this does not work very well in browsers, because they don't have any isotropic filter in their image renderer when they scale the images; in addition, some older browers are unable to resize the image, so the requested size will not be shown).
Source

Forest Service, US Department of Agriculture.
Date

August 2007
Author

Modified by Verdy p.
Permission
(Reusing this image)
This image is a work of the Forest Service of the United States Department of Agriculture. As a work of the U.S. federal government, the image is in the public domain.
Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.

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File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current02:13, 5 August 2007348×500 (44 KB)Verdy p (Resolution doubled with adaptive filters to avoid jittering when the image is displayed at larger widths in taxoboxes (typically around 250px). No color adjustment was made, if the image is reduced 50% back to 175x250 we get the same original in Wikipédi)
01:48, 5 August 2007174×250 (52 KB)Verdy p (Just rotate 90 degrees for correct orientation)
19:47, 5 March 2007250×174 (15 KB)Svtiste (* ''Ammodramus henslowii'' * Henslow's Sparrow * Bruant de Hebslow {{PD-USGov-USDA-FS}} )
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Horizontal resolution 96 dpi
Vertical resolution 96 dpi
Software used Paint.NET v3.08