File:Nightingale Butler Birds of Great Britain and Ireland.jpg

An illustration of a Nightingale from Butler's Birds of Great Britain and Ireland

Birds of Great Britain and Ireland, Order Passeres, vol. I, plate 13

ca. 1907–1908

Signature unclear, but appears to be that of Frederick William Frohawk (d. 1946), otherwise may be that of Henrik Grönvold (d. 1940); in a book by Arthur G. Butler (d. 1925)

Copyright in source country the U.K. until 1 January 2017 if by Frohawk.

This image is in the public domain in the United States because it was first published outside the United States prior to January 1, 1929. Other jurisdictions have other rules. Also note that this image may not be in the public domain in the 9th Circuit if it was first published on or after July 1, 1909 in noncompliance with US formalities, unless the author is known to have died in 1953 or earlier (more than 70 years ago) or the work was created in 1903 or earlier (more than 120 years ago.)[1] PD-US Public domain in the United States //en.wikipedia.org/wiki/File:Nightingale_Butler_Birds_of_Great_Britain_and_Ireland.jpg

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