Resources for data collection
The following is a selection of downloadable PDFs that contain useful information. Some are intended to aid with the collection of biometric data, such as moult codes and brood patch scores, whilst others are intended as reference materials to help in the field. Further information about what additional biometric information we recommend taking can be found on the Additional biometrics page.
General information
Topography of a bird
Topography of a bird (PDF, 121.35 KB)
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490 Kb |
Trapped rarity form
Trapped rarity form (DOC, 168.50 KB)
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153 Kb |
| Ring size list | 534 Kb |
| Errata - Identification Guide to European Passerines - Svensson |
22 Kb |
| A Field Reference Guide for Ringing and Nest Recording errata 11-07-2024 |
Biometric data
Moult and codes
Moult and codes (PDF, 223.83 KB)
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| 14 Kb | |
| 10 Kb | |
Moult scoring
Moult scoring (PDF, 65.45 KB)
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27 Kb |
Moult coding - age 2
Moult coding - age 2 (PDF, 11.16 KB)
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11 Kb |
Moult coding - age 3
Moult coding - age 3 (PDF, 12.48 KB)
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13 Kb |
Moult coding - age 4-6
Moult coding - age 4-6 (PDF, 11.95 KB)
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12 Kb |
Sedge Warbler
Sedge Warbler (PDF, 11.61 KB)
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2 Kb |
Partial moult likelihood crib sheet
Partial moult likelihood crib sheet (PDF, 131.86 KB)
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132 Kb |
Brood patch codes and photos
Brood patch codes and photos (PDF, 559.43 KB)
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96 Kb |
Brood patches
Brood patches (PDF, 161.12 KB)
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4.41 Mb |
| 497 Kb | |
Pectoral muscle score
Pectoral muscle score (PDF, 475.77 KB)
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476 Kb |
Species information
Separating Marsh and Willow Tits
Separating Marsh and Willow Tits (PDF, 475.06 KB)
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476 Kb |
| Ageing and sexing Grey Partridges |
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