A Census of House Martins and Swallows Near Manchester, 1933

Measurement of Bird Populations

“…Among passerine species, there have been several counts of rooks in various sections of England (Roebuck 1933, Y app 1934, Tucker 1935Cramp & Ward 1936, Mitchf'l11938). Boyd (1933Boyd ( -1936 and Cramp & Ward (1934) have reported a series of studies with swallows, Marples (1934) has a population report on starlings, Price (1935) has two separate reports on nightingales, chiff-chaffs, and willow war-biPrs, and Serle & Bryson (1935) have one on the dipper. Most of these studies deal with conspicuous species or those the nests of which are easily found or that occur in large colonies or roosts or that are especially sought after by sportsmen.…”

Breeding habitat selection in the SwallowHirundo rustica

“…Swallow colonies are generally small, only rarely exceeding 20 pairs (Cramp and Ward 1934, VietinghoffRiesch 1955, Lind 1964, Beser 1968, this study). However, most pairs around Kraghede bred in sites with more than one pair, with colony size apparently depending on nest site availability (cf.…”

The population of the House MartinDelichon urbicain East Lancashire

“…Heavily populated and industrialised areas were treated as urban and their outskirts as suburban, the rest of the study area being considered as rural. This interpretation of the separate areas has led to results at variance with those found previously (Alexander 1933, Cramp & Ward 1934, Boyd 1936, Cramp 1949, Bouldin 1959, in which the House Martin was found to be more numerous in suburban than in rural areas.…”