1. Eruptions of bearded tits during 1959–1965;Axell;Br. Birds,1966
2. Savi's warblers breeding in Suffolk;Axell;Br. Birds,1972
3. The birds of the British Isles;Bannerman,1953
4. Problems of censusing reed buntings, sedge warblers and reed warblers;Bell;Bird Study,1968
5. Breeding bitterns at Minsmere;Berry;Suffolk Nat. Hist.,1978