Birds. Amend migratory bird treaty act of July 3, 1918 (40 Stat. 755), report to accompany S. 4584 [to amend migratory bird treaty act of July 3, 1918 (40 Stat. 755), to extend and adapt its provisions to convention between United States and United Mexican States for protection of migratory birds and game mammals concluded at city of Mexico, Feb. 7, 1936]; submitted by Mr. Gillette.