Keywords: 2012.09.14.111537 Sialia mexicana female Mather Point Grand Canyon Arizona.jpg en Western Bluebird female Sialia mexicana at Mather Point Grand Canyon Arizona USA 2012-09-14 11 15 37 own Hermann Luyken 36 063866 -112 122917 cc-zero Uploaded with UploadWizard Sialia mexicana Birds in Grand Canyon |