Notes
01 June 1982
Notes
Breeding Bitterns in Cambridgeshire 5,000 years ago
J. C. U. Day and J. Wilson (Brit. Birds 71: 285-300), H.J. Harvey (Brit. Birds 71: 466) and G. P. Catley (Brit. Birds 72: 238) have given valuable data on the recent history of Bitterns B...
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