WIGMAN AB (1951) Breeding Peregrine 1950. LIMOSA 24 (1): 8-10.

In 1949 the Peregrine Falcon did an attempt to breed on the diluvial accretion in the centre of the Netherlands, a poor district of deserted sanddunes with scattered Pinus sylvestris (d. Limosa, 22, p. 337~341). The birds came back in this area 1950 and a nest was found in a little copse of pine-trees, near the site of the previous year (height about 3.50 m): April 6th it contained 3 eggs, which were unfortunately robbed. A second brood with 2 eggs was discovered May 21 th about 2 km away at the edgle of a wood and again in an old crow nest in a Pinus (7 a 8 m). Probably the clutch was infertile, for it was left when we visited the eyrie a month later. The tree had been made unaccessible by barbed wire and there were no signs that someone had nevertheless climbed up the tree. To our deep regret both attempts of 1950 did also turn out unsuccess full. Hitherto the birds raised their young safely only once (1948), as far as our knowledge goes. Peregrine Falcon Falco peregrinus

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