Carolina Parakeet Conuropsis carolinensis

Carolina Parakeet Conuropsis carolinensis. Public Domain ClipArt Stock Photos and Images. Carolina parakeets by John James Audubon (1785–1851) Date: 1833 engraving publication, from 1825 painting done in Louisiana.

Source: John James Audubon's "Carolina Parakeets" which is a part of the permanent collection at the New York Historical Society.

February 21, 1918 – The last Carolina Parakeet dies in captivity at the Cincinnati Zoo.

This image (or other media file) is in the public domain because its copyright has expired. This applies to the United States, where Works published prior to 1978 were copyright protected for a maximum of 75 years, in this case 1833. See Circular 1 "COPYRIGHT BASICS" PDF from the U.S. Copyright Office.

and also in countries that figure copyright from the date of death of the artist (post mortem auctoris in this case John James Audubon (1785–1851) and that most commonly run for a period of 50 to 70 years from that date.