The censuses of Britain, America and New Zealand do not ask about sexual orientation.
The censuses provide a quasi-experimental approach, allowing a comparison to be made of breeding population trends of three species, Lapwing, Redshank and Snipe, on scheme and non-scheme land.
This key work could only be undertaken due to the accuracy of the censuses.
Their overall numbers are falling: between the censuses of 2001 and 2011 the proportion of people calling themselves Christians fell from 72% to 59%.
The number of black and minority ethnic (BME) residents in Shiregreen increased by 150% between the censuses of 2001 and 2011.
Between the censuses of 2001 and 2011, the numbers of households in the private-rented sector in England and Wales went from 1.9 million to 3.6 million; the proportion had risen 69%.
After the censuses of 1990, 2000 and 2010, Republicans demonstrated superior skill in controlling the election of the state legislators who draw new district lines — and superior deftness in the mechanics of creating new districts.
Between the censuses of 1790 and 1860 the slave population of the South expanded enormously from 657,327 to 3,838,765 one of the fastest rates of population growth ever recorded prior to the advent of modern medicine.
Fewer Britons are now willing to get into cars with other people.Between the censuses of 2001 and 2011 the number of people travelling to work by car rose in most parts of England and Wales.
Researchers from the Centre for Demographic Studies (Barcelona) and the Minnesota Population Centre have for the first time trawled through the censuses of more than 50 countries in every continent for people aged 25-39.
But the number of workers in textiles and clothing in Varese province almost halved to 27,300 between the censuses of 1981 and 2001, and the number of firms employing them dropped from 4,900 to 2,900.
