Also present
Totals Vogelringgroep De Grauwe Gans (Oostvaardersdijk, Almere) 2021
| Species | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Totals | Newly ringed | Retraps | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Wryneck | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (11 Sep) | 3 | 1 | 11 Sep | 11 Sep | ||||
| 2. | Great Spotted Woodpecker | 0 | 1 | 2 | 1 | 1 | 0 | 0 | 1 | 0 | 6 | 3 | 3 | 2 (23 May) | 13 | 5 | 18 Apr | 16 Oct | ||||
| 3. | Willow Tit | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 0 | 10 | 3 | 7 | 2 ( 5 Sep) | 15 | 6 | 5 Sep | 23 Oct | ||||
| 4. | Blue Tit | 3 | 4 | 7 | 2 | 17 | 4 | 11 | 128 | 14 | 190 | 176 | 14 | 50 (16 Oct) | 55 | 22 | 21 Mar | 5 Nov | ||||
| 5. | Great Tit | 0 | 6 | 2 | 7 | 4 | 7 | 8 | 31 | 3 | 68 | 55 | 13 | 13 (17 Oct) | 53 | 21 | 18 Apr | 5 Nov | ||||
| 6. | Bearded Tit | 0 | 0 | 0 | 0 | 0 | 0 | 87 | 58 | 3 | 148 | 147 | 1 | 83 (26 Sep) | 20 | 8 | 18 Sep | 5 Nov | ||||
| 7. | Sand Martin | 0 | 0 | 0 | 0 | 0 | 10 | 4 | 0 | 0 | 14 | 14 | 0 | 10 (20 Aug) | 8 | 3 | 20 Aug | 17 Sep | ||||
| 8. | Swallow | 0 | 0 | 0 | 0 | 0 | 93 | 94 | 0 | 0 | 187 | 183 | 4 | 60 ( 2 Sep) | 15 | 6 | 6 Aug | 17 Sep | ||||
| 9. | Cetti's Warbler | 0 | 9 | 9 | 5 | 15 | 9 | 18 | 23 | 5 | 93 | 57 | 36 | 9 (23 Oct) | 75 | 30 | 9 Apr | 20 Nov | ||||
| 10. | Willow Warbler | 0 | 18 | 7 | 20 | 20 | 8 | 0 | 0 | 0 | 73 | 58 | 15 | 13 (26 Jun) | 38 | 15 | 9 Apr | 21 Aug | ||||
| 11. | Chiffchaff | 0 | 20 | 8 | 13 | 28 | 8 | 45 | 6 | 2 | 130 | 112 | 18 | 17 (26 Sep) | 73 | 29 | 3 Apr | 5 Nov | ||||
| 12. | Chiffchaff (Siberian - tristis) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (31 Oct) | 3 | 1 | 31 Oct | 31 Oct | ||||
| 13. | Sedge Warbler | 0 | 16 | 40 | 54 | 84 | 19 | 2 | 0 | 0 | 215 | 153 | 62 | 48 ( 3 Jul) | 63 | 25 | 9 Apr | 5 Sep | ||||
| 14. | Reed Warbler | 0 | 3 | 53 | 41 | 232 | 190 | 83 | 0 | 0 | 602 | 507 | 95 | 88 (21 Aug) | 63 | 25 | 24 Apr | 26 Sep | ||||
| 15. | Marsh Warbler | 0 | 0 | 1 | 8 | 10 | 9 | 1 | 0 | 0 | 29 | 23 | 6 | 6 ( 1 Aug) | 28 | 11 | 13 May | 11 Sep | ||||
| 16. | Savi's Warbler | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 4 | 4 | 0 | 1 (13 May) | 10 | 4 | 13 May | 1 Aug | ||||
| 17. | Grasshopper Warbler | 0 | 0 | 5 | 1 | 3 | 1 | 0 | 0 | 0 | 10 | 4 | 6 | 2 (13 May) | 23 | 9 | 8 May | 21 Aug | ||||
| 18. | Blackcap | 0 | 12 | 8 | 7 | 20 | 16 | 29 | 4 | 0 | 96 | 90 | 6 | 10 (21 Aug) | 53 | 21 | 9 Apr | 31 Oct | ||||
| 19. | Garden Warbler | 0 | 0 | 9 | 7 | 18 | 9 | 5 | 0 | 0 | 48 | 41 | 7 | 13 (18 Jul) | 40 | 16 | 1 May | 26 Sep | ||||
| 20. | Lesser Whitethroat | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 0 | 0 | 4 | 4 | 0 | 1 ( 7 May) | 10 | 4 | 7 May | 5 Sep | ||||
| 21. | Whitethroat | 0 | 0 | 11 | 3 | 3 | 1 | 0 | 0 | 0 | 18 | 16 | 2 | 4 ( 1 May) | 25 | 10 | 1 May | 1 Aug | ||||
| 22. | Firecrest | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 ( 5 Sep) | 3 | 1 | 5 Sep | 5 Sep | ||||
| 23. | Wren | 0 | 3 | 0 | 0 | 2 | 1 | 2 | 17 | 1 | 26 | 19 | 7 | 6 (23 Oct) | 30 | 12 | 18 Apr | 5 Nov | ||||
| 24. | Short-toed Tree Creeper | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 2 | 0 | 1 (10 Jul) | 5 | 2 | 10 Jul | 21 Aug | ||||
| 25. | Song Thrush | 0 | 4 | 5 | 2 | 1 | 1 | 0 | 10 | 0 | 23 | 19 | 4 | 3 ( 1 May) | 40 | 16 | 3 Apr | 31 Oct | ||||
| 26. | Blackbird | 0 | 2 | 6 | 3 | 0 | 1 | 2 | 6 | 5 | 25 | 19 | 6 | 4 (20 Nov) | 40 | 16 | 18 Apr | 20 Nov | ||||
| 27. | Ring Ouzel | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (31 Oct) | 3 | 1 | 31 Oct | 31 Oct | ||||
| 28. | Robin | 0 | 12 | 3 | 0 | 0 | 2 | 19 | 47 | 8 | 91 | 84 | 7 | 12 (26 Sep) | 48 | 19 | 3 Apr | 20 Nov | ||||
| 29. | Bluethroat | 1 | 9 | 2 | 4 | 7 | 5 | 2 | 0 | 0 | 30 | 23 | 7 | 5 ( 3 Jul) | 35 | 14 | 21 Mar | 18 Sep | ||||
| 30. | Pied Flycatcher | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 ( 8 May) | 3 | 1 | 8 May | 8 May | ||||
| Species | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Totals | Newly ringed | Retraps | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Redstart | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 ( 8 May) | 3 | 1 | 8 May | 8 May | ||||
| 32. | Stonechat | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 (18 Apr) | 3 | 1 | 18 Apr | 18 Apr | ||||
| 33. | Tree Sparrow | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 3 | 0 | 2 (23 Oct) | 5 | 2 | 16 Oct | 23 Oct | ||||
| 34. | Dunnock | 0 | 2 | 2 | 4 | 1 | 3 | 6 | 6 | 1 | 25 | 22 | 3 | 4 ( 5 Sep) | 45 | 18 | 24 Apr | 5 Nov | ||||
| 35. | Grey Wagtail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 (17 Oct) | 3 | 1 | 17 Oct | 17 Oct | ||||
| 36. | White Wagtail | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 (24 Apr) | 3 | 1 | 24 Apr | 24 Apr | ||||
| 37. | Water Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 1 | 7 | 7 | 0 | 4 (23 Oct) | 8 | 3 | 17 Oct | 5 Nov | ||||
| 38. | Chaffinch | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (31 Oct) | 3 | 1 | 31 Oct | 31 Oct | ||||
| 39. | Bullfinch | 0 | 0 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 6 | 5 | 1 | 3 (23 May) | 8 | 3 | 23 May | 18 Jul | ||||
| 40. | Greenfinch | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (26 Sep) | 3 | 1 | 26 Sep | 26 Sep | ||||
| 41. | Linnet | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 1 | 1 ( 7 May) | 8 | 3 | 7 May | 6 Jun | ||||
| 42. | Goldfinch | 0 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 5 | 4 | 1 | 2 (10 Jul) | 8 | 3 | 24 Apr | 18 Jul | ||||
| 43. | Reed Bunting | 0 | 1 | 0 | 2 | 14 | 6 | 15 | 14 | 2 | 54 | 51 | 3 | 11 (26 Sep) | 38 | 15 | 9 Apr | 20 Nov | ||||
| Species | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Totals | Newly ringed | Retraps | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 4 | 125 | 190 | 185 | 491 | 405 | 442 | 370 | 45 | 2257 | 1922 | 335 | 100 | 40 | ||||||||
| Observation hours | 2:45 | 26:25 | 32:55 | 19:35 | 23:45 | 20:25 | 24:10 | 26:45 | 6:45 | 183:30 | ||||||||||||
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