[Clipart] [Open Clip Art Library] use of drawing

[noreply at openclipart.org]

Hello, may I use one of the golden plover drawings (http://openclipart.org/Xiph/files/ryanlerch/1891 -- "Golden Plovers") to accompany a tune called "The Golden Plover" in an upcoming issue of Fiddler Magazine? If so, should I give a credit? To the website, or to the artist (Ryan? Also says "featuring:	USA Fish and Wildlife Service, Bob Hines". ) Thank you!