en 
Nederlands
Projects
| name | actions |
|---|---|
| Blackbird, 3 colour rings + metal ring (the Netherlands - Berg en Dal) | info |
| Black-crowned Night Heron, white ring with 2 letters | info |
| Black-headed Gull, 1 ring with 2 characters | info |
| Black-headed Gull, white ring with 3 characters (first=L) | info |
| Black-headed Gull, white ring with 4 characters (first=E) | info |
| Common Buzzard, 1 red or dark green ring with 2 characters | info |
| Common Coot, 1 orange ring with 3 characters | info |
| Common Moorhen, 1 orange ring with 3 characters (first=C or S) | info |
| Common Tern (white of yellow ring with 3 characters) | info |
| Greenfinch, 3 colour rings + metal ring | info |
| Jackdaw, yellow ring with 4 characters (first=E) | info |
| Kestrel, lime ring with 3 letters | info |
| Little Ringed Plover, 1 colour ring with 2 characters | info |
| Mallard, 1 white ring with 2 digits + 1 letter | info |
| Mallard, white ring with 2 letters | info |
| Mandarin Duck, 1 yellow ring with 2 characters | info |
| Mew Gull, white ring with 4 characters (first=E) | info |
| Northern Lapwing, 1 pale blue flag with 2 characters | info |
| Northern Lapwing, 1 pale blue flag with 2 characters and orange marker | info |
| Northern Lapwing, 1 white flag with 2 characters and orange marker | info |
| Northern Lapwing, both legs 1 colourring with 1 character | info |
| Northern Lapwing, white ring with 4 characters | info |
| Sandwich Tern, ring with 3 characters (first=N H A or 2 (with [.]) or a T on various positions) | info |
| White-tailed Eagle, 1 grey or black ring with 4 characters (first=A) | info |
Look at the help page for more information.
Contact helpdesk@cr-birding.org for support and more information.
