Notes

01 November 1991 Comments Notes Herons alighting on sea. On 31st August 1985, from the Zuluf offshore oilfield in the Persian Gulf, N. J. S. Drummond and I observed a migrating flight of seven Purple Herons Ardea purpurea flying very low over the sea. One of them suddenly a...
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Notes

01 November 1983 Comments Notes Division of parental care by Mute Swans In May 1978, at Marazion marsh, Cornwall, a pair of Mute Swans Cygnus olor reared three cygnets. In the first four weeks the family remained intact, keeping near the nest site in pools. During this period...
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