Amendments to the Migratory bird treaty act for regulation by flyways and to establish a migratory game bird advisory committee : hearings before the Subcommittee on Conservation of Wildlife Resources of the Committee on Merchant Marine and Fisheries, House of Representatives, Eightieth Congress, second session, on H.R. 5493 and H.R. 5579, bills to amend the migratory bird treaty act so as to provide that regulations adopted pursuant to such act for any area, section, or flyway shall be based on conditions existing within such area, section, or flyway, and to create a migratory game bird advisory committee, April 20, 1948.