March 1991 – vol. 84, issue 3, pp 117–120 Opinions expressed in this feature are not necessarily those of 'British Birds'. ICBP spells it out. When 380 conservation experts from 56 countries met at the 20th World Conference of the International Council for Bird Preservation (in Hamilton, New Zealand, in November 1990), they made plain some stark facts. Two-thirds of the world's 9,000 bird species are in decline and over 1,000 are threaten... This article is only available to subscribed users.To read more, please log in or purchase a subscription.