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Résumé :
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In June 2002 a pair of Red-necked Grebes was observed on the Groote Meer, western Noord-Brabant, The Netherlands. One of the birds was in normal breeding plumage, but the other was obviously duller coloured. They built a nest and the dull coloured bird was seen breeding regularly. On 23 June at least one white egg was seen. On 6 and 13 July the nest was gone, but the pair remained on the same spot. The brightly coloured bird sometimes gave the advertising call. From 23 June on a third, regularly calling individual in breeding plumage was seen in the neighbourhood. No contact between this individual and the pair was observed, but on 6 July it had a conflict with a Great Crested Grebe breeding on the lake. This is the southernmost confirmed case of breeding of the Red-necked Grebe in The Netherlands.
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