September 1990 – vol. 83, issue 9, pp 353–390 This is the sixteenth annual report published by the Panel: the fifteenth report, for 1987, was published last year (Brit. Birds 82: 477-504). Once again, the Panel has received widespread co-operation from county recorders, and from a number of observers who have reported directly to us. We are totally dependent on others for our raw material, and are greatly obliged to those who labour... This article is only available to registered users.To read more, please log in or purchase a subscription.