Listing guidelines
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The bird must have been within the county of Berkshire.
- Birds in another county but seen from within Berkshire are not countable.
- Birds seen at locations that were within Berkshire prior to changes to the boundary are not countable.
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The bird must have been a species currently accepted by the Berkshire Records Committee, or by the British Birds Rarities Committee.
- Sub-species, colour morphs and hybrids are not countable.
- Introduced species may be counted when they meet the requirements for addition to category C. The feral Barnacle Geese and Snow Geese at Moor Green are not considered to be self-sustaining and are not countable.
- Rarities must be accepted by the relevant committee (either the BBRC or the BRC).
- The bird must have been alive, wild, and unrestrained.
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Diagnostic field-marks for the bird, sufficient to identify to species, must have been seen.
- Species only recorded by song/call are not countable.
Year listing
In addition to the four rules above:
- Heard-only Quail may be counted.
- The duration of the list must be within one calendar year.
- Please submit your list by 30th April and your final list (with dates and locations) by 10th January of the following year.
Bird racing
In addition to the four rules above:
- Teams should consist of 3 or 4 members.
- All team members must identify each species.
- The duration of the race must be within one calendar day.
- Heard-only birds may be counted.
Self-found
In addition to the four rules above:
- A date and site must be given for all species with a rarity status of "scarce", "very scarce", "rare" and "very rare".
Andy Johnson has written some comprehensive rules.