female Pterocles orientalis - Ganga unibande - Black-bellied Sandgrouse - Sandflughuhn
male Pterocles orientalis - Ganga unibande - Black-bellied Sandgrouse - Sandflughuhn
Date
Source
This image comes from the book:
Naumann, Naturgeschichte der Vögel Mitteleuropas. 3. Aufl. Neubearb. von G. Berg et al. Hrsg. von Carl R. Hennicke. (Naumann, Natural history of the birds of central Europe, 3rd Ed. Revised by G. Berg et al.; Edited by Carl R. Hennicke.) of 1905 or his earlier works.
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: I singled one species out and replaced distracting elements and parts of other species with plants or other background elements. In many cases additional color correction. I release my work under the same license as the original work, therefore I want to be mentioned if the original artist is mentioned. The original can be viewed here: Pterocles sp.jpg: . Modifications made by Kersti Nebelsiek.
Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
