This is a file from the Wikimedia Commons and may be used by other projects. Information from its description page there is shown below. Commons is a freely licensed media file repository.
Summary
DescriptionGlacier bay banner.jpg
English: A flock of black-legged kittiwakes on an iceberg, Glacier Bay, Alaska
This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 9 September 2011, 16:26 by Dankarl. On that date, it was confirmed to be licensed under the terms of the license indicated.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.