Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePatterns in the distribution, abundance and variation of bird populations.AuthorsSutherland, William J.; Baillie, Stephen R.PublicationIbis, 1993, Vol 135, Issue 2, p209ISSN0019-1019Publication typeArticleDOI10.1111/j.1474-919X.1993.tb02834.x