BAKKER D, STAM A (1950) Inhabitants Noordoostpolder, 8th message; breeding season 1949. LIMOSA 23 (3): 292-315.

This article contains data on the breeding birds in the North-Eastpolder, a reclaimed part, 100.500 acres in extent, of the former Zuiderzee. These data mainly refer to 1949, the eighth year of reclamation, but incomplete additional data of 1947 and 1948 are also mentioned.
      With the exception of about 6500 acres in the West of the polder (shaded part on map 2), th'e whole area had been put under cultivation in 1949. The greater part of the uncultivated area consisted of uniform reedland. The reed-bunting was here the dominating species.
      In the extreme West, along the dike, was a seepage region, which consisted of shallow pools, alternated by reed-- and rushfields. This seepage region proved to be an excellent breeding-place for the marsh-harrier, the reed-bunting,' the Savi's warbler, the reed-warbler, the great reed-warbler, the sedge-warbler, the bearded titmouse, the bittern and the water-rail. Probably the white-spotted bluethroat was also breeding here, while the breeding of the grey lag-goose in this habitat was not impossible.
      In the reed-and rushvegetation along the canals and the ditches in the polder the .sedge-warbler, the reed-warbler and the moor-hen were found. In 1949 slightly covered soil was no longer common in the North-Eastpolder. This may explain the decrease of the ringed-, the little ringed- and the Kentish plover, the avocet and the herring gull. The blackheaded gull on the contrary kept his ground in two great colonies, while the common tern was still breeding in rather a great number.
      On the heavy soil in the cultivated area small grains and alfalfa are the most important crops. The densety of human population in this region was still slight. In 1949 the blue-headed wagtail occurred in great numbers in these crops. The sky-lark and the meadow-pipit were also common here. Sedge-warblers, bluethroats, crested larks and corn-buntings inhabited these fields as well. The breeding. of the marsh-harrier in agricultural crops is noticeable. In the neighbourhood of Schokland the lapwing nested in these crops. Pastures are chiefly found on the light .soil in the East of the polder. Last year the lapwingpopulation increased to some degree in this region (map 3). Also the blacktailed godwit was breeding here. Blue-headed wagtails, meadow-pipits and sky-larks too were common breeding-birds in these pastures.
      Wooding of soil of little value for agriculture and plantings along roads and farmyards were increased in recent years. The breeding of the icterine warbler, the whitethroat. the lesser whitethroat and the turtledove occurred only in these woody places. Probably in 1949 the willow-warbler, the garden-warbler and the golden oriole were breeding here.
      Owing to the increase of human dwellings the house-sparrow and the martin are now common in the North-Eastpolder.

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