Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA change in the breeding season of Ruppell's griffon vultures Gyps rueppellii in the Serengeti in response to changes in ungulate populationsAuthorsHouston, David C.PublicationIbis, 1990, Vol 132, Issue 1, p36ISSN0019-1019Publication typeArticleDOI10.1111/j.1474-919x.1990.tb01014.x