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Winter Farmland Birds Survey

Results

The Winter Farmland Bird Survey has generated a staggering amount of information on lowland farmland birds. The map (right) shows all 10-km squares from which at least one farmland bird record was reported over the three years of the survey. It shows that someone visited almost the whole extent of British farmland for this BTO survey - an amazing measure of the efforts of these dedicated volunteer observers.

Now for some big numbers! Winter Walks and Casual Records were popular and each winter yielded several hundred-thousand records. The table below breaks down the numbers of forms, routes or squares visited and total numbers of birds reported. These add up to a staggering 5.2 million birds over the three winters….and we have yet to received probably a further half-million records from the final winter of the Square Survey.

Casual Record statistics

	1999/2000	2000/2001	2001/2002
Forms received	440	302	280
Flock records	7301	4860	5353
Total birds	1,238,477	852,530	893,045

Winter Walks statistics

	1999/2000	2000/2001	2001/2002
Routes visited	447	275	303
Records	21,810	13,688	15,990
Total birds	554,861	351,240	395,686

Square Survey statistics

	1999/2000	2000/2001	2002/2003
Squares surveyed	870	801	745
Field records	36,522	69,273	76,502
Total birds	404,775	532,997	546,035

The maps below show the distribution of 10-km squares receiving coverage for the different components of the survey. To see results from specific results, click on the appropriate map:

Casual Records	Winter Walks	Square Survey

To view results for an individual species, select one from the following drop down menus:

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