Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAnalysis and a theory of visible bird migrationAuthorsAlerstam, T.SubjectsSWEDEN; BIRDS; WEATHER; WINDSPublicationOikos, 1978, Vol 30, Issue 2, p273ISSN0030-1299Publication typeArticleDOI10.2307/3543483