Spencer, R / September 1991 – vol. 84, issue 9, pp 349–370 This is the seventeenth annual report published by the Panel; the sixteenth report, for 1988, was published last year (Brit. Birds 83: 353- 390). It is, as usual, based on material submitted by county or regional recorders, supplemented by data extracted from Schedule 1 licence returns to the NCC, and from letters from observers reporting directly to the Panel. The support which the Panel ha... This article is only available to registered users.To read more, please log in or purchase a subscription.