Nest of the Reed warbler mb-artist Henry_Silkstone_Hopwood presumably the grey heron Ardea

presumably the grey heron Ardea cinerea showing braches and twigs incorporated into its construction and containing a clutch of three eggs

The River Thames at Greenwich

when the truth was that Britain was maintaining a policy of isolation

Cars pass along a straight on the main circuit some distance below

Nest of the Reed warbler mb-artist Henry_Silkstone_Hopwood presumably the grey heron ArdeaStudy of a reed warbler's nest Acrocephalus scirpaceus, showing its woven construction between upright low lying canes and containing a clutch of two eggs. Plate 12 from book Sammlung von Nestern und Eyern verschiedener Vogel by Adam Ludwig Wirsing and Friedrich Christian Gunther (A L Wirsing, Nuremburg, 1772). Inscribed: 'Tab. XII. Planche 12 de la fauvette de Roseaux. Rohr Sperling. A. L. Wirsing excudit Norimberg.' Original: copperplate engraving.