Dutch Birding: Identification of Western Palearctic Swifts

Dutch Birding Magazine, Volume 15, No. 3. Pages 97-144. The article mentioned covers pages 97 - 135 and is written in English. This magazine also includes reports of rare and interesting birds in the Western Palearctic (in English) and Recente meldingen (in Dutch). Illustrated with black & white drawings and color photographs. Very good.