"Most species of migratory birds are protected in Canada under the Migratory Birds Convention Act. The Act was passed in 1917 to enable the Canadian government to meet the terms of an agreement, known as the Migratory Birds Convention, it had made with the United States in the preceding year. As a result, the Canadian government is empowered to pass and enforce regulations to protect those species of migratory birds which are included in the Convention and which inhabit Canada for all or part of the year. Similar legislation in the United States protects species found in that country, some of which may not occur in Canada"--Foreword.