Also present
Totals Po Toi - Seawatch (Hong Kong) 2022
| Species | Apr | Totals | NE | W | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Garganey | 34 | 34 | 34 | 0 | 22 (10 Apr) | 25 | 2 | 3 Apr | 10 Apr | ||||
| 2. | Pacific Swift | 16 | 16 | 16 | 0 | 9 (16 Apr) | 75 | 6 | 10 Apr | 25 Apr | ||||
| 3. | House Swift | 2 | 2 | 2 | 0 | 1 (15 Apr) | 25 | 2 | 15 Apr | 18 Apr | ||||
| 4. | Pacific Golden Plover | 3 | 3 | 3 | 0 | 3 ( 3 Apr) | 13 | 1 | 3 Apr | 3 Apr | ||||
| 5. | Grey Plover | 4 | 4 | 4 | 0 | 4 ( 3 Apr) | 13 | 1 | 3 Apr | 3 Apr | ||||
| 6. | Whimbrel | 149 | 149 | 149 | 0 | 61 (25 Apr) | 75 | 6 | 3 Apr | 26 Apr | ||||
| 7. | Far Eastern Curlew | 9 | 9 | 9 | 0 | 7 (16 Apr) | 25 | 2 | 16 Apr | 17 Apr | ||||
| 8. | Curlew | 3 | 3 | 3 | 0 | 3 (17 Apr) | 13 | 1 | 17 Apr | 17 Apr | ||||
| 9. | Turnstone | 1 | 1 | 1 | 0 | 1 (26 Apr) | 13 | 1 | 26 Apr | 26 Apr | ||||
| 10. | wader sp. | 149 | 149 | 144 | 5 | 88 (25 Apr) | 63 | 5 | 3 Apr | 26 Apr | ||||
| 11. | small wader | 1 | 1 | 1 | 0 | 1 (18 Apr) | 13 | 1 | 18 Apr | 18 Apr | ||||
| 12. | large wader | 6 | 6 | 0 | 6 | 6 (15 Apr) | 13 | 1 | 15 Apr | 15 Apr | ||||
| 13. | Red-necked Stint | 50 | 50 | 50 | 0 | 50 (18 Apr) | 13 | 1 | 18 Apr | 18 Apr | ||||
| 14. | Red-necked Phalarope | 526 | 526 | 458 | 68 | 241 (25 Apr) | 88 | 7 | 3 Apr | 26 Apr | ||||
| 15. | Redshank | 4 | 4 | 4 | 0 | 2 ( 3 Apr) | 25 | 2 | 3 Apr | 25 Apr | ||||
| 16. | Oriental Pratincole | 15 | 15 | 15 | 0 | 8 (10 Apr) | 63 | 5 | 10 Apr | 25 Apr | ||||
| 17. | Black-tailed Gull | 6 | 6 | 6 | 0 | 2 (10 Apr) | 38 | 3 | 10 Apr | 25 Apr | ||||
| 18. | Vega Gull | 1 | 1 | 1 | 0 | 1 ( 3 Apr) | 13 | 1 | 3 Apr | 3 Apr | ||||
| 19. | Mongolian Gull | 1 | 1 | 1 | 0 | 1 ( 3 Apr) | 13 | 1 | 3 Apr | 3 Apr | ||||
| 20. | Slaty-backed Gull | 2 | 2 | 2 | 0 | 1 ( 3 Apr) | 25 | 2 | 3 Apr | 26 Apr | ||||
| 21. | Heuglin's Gull | 113 | 113 | 112 | 1 | 98 ( 3 Apr) | 63 | 5 | 3 Apr | 18 Apr | ||||
| 22. | large gull sp. | 29 | 29 | 29 | 0 | 25 ( 3 Apr) | 25 | 2 | 3 Apr | 10 Apr | ||||
| 23. | Gull-billed Tern | 147 | 147 | 134 | 13 | 62 (26 Apr) | 88 | 7 | 10 Apr | 26 Apr | ||||
| 24. | Caspian Tern | 4 | 4 | 4 | 0 | 4 (15 Apr) | 13 | 1 | 15 Apr | 15 Apr | ||||
| 25. | Greater Crested Tern | 452 | 452 | 452 | 0 | 127 (25 Apr) | 100 | 8 | 3 Apr | 26 Apr | ||||
| 26. | Little Tern | 332 | 332 | 330 | 2 | 180 (18 Apr) | 75 | 6 | 10 Apr | 26 Apr | ||||
| 27. | Aleutian Tern | 604 | 604 | 598 | 6 | 185 (18 Apr) | 88 | 7 | 10 Apr | 26 Apr | ||||
| 28. | Bridled Tern | 46 | 46 | 44 | 2 | 21 (25 Apr) | 63 | 5 | 15 Apr | 26 Apr | ||||
| 29. | Black-naped Tern | 40 | 40 | 36 | 4 | 24 (25 Apr) | 63 | 5 | 3 Apr | 26 Apr | ||||
| 30. | Common Tern | 613 | 613 | 608 | 5 | 336 (25 Apr) | 88 | 7 | 10 Apr | 26 Apr | ||||
| Species | Apr | Totals | NE | W | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Whiskered Tern | 15 | 15 | 14 | 1 | 6 (10 Apr) | 75 | 6 | 3 Apr | 26 Apr | ||||
| 32. | White-winged Black Tern | 25 | 25 | 25 | 0 | 19 (15 Apr) | 38 | 3 | 15 Apr | 25 Apr | ||||
| 33. | tern/marsh tern sp. | 458 | 458 | 442 | 16 | 142 (25 Apr) | 100 | 8 | 3 Apr | 26 Apr | ||||
| 34. | Pomarine Skua | 4 | 4 | 4 | 0 | 3 (15 Apr) | 25 | 2 | 15 Apr | 18 Apr | ||||
| 35. | Arctic Skua | 103 | 103 | 103 | 0 | 43 (25 Apr) | 75 | 6 | 15 Apr | 26 Apr | ||||
| 36. | Long-tailed Skua | 4 | 4 | 2 | 2 | 2 (16 Apr) | 38 | 3 | 16 Apr | 18 Apr | ||||
| 37. | skua sp. | 46 | 46 | 45 | 1 | 21 (16 Apr) | 63 | 5 | 3 Apr | 18 Apr | ||||
| 38. | Ancient Murrelet | 5 | 5 | 5 | 0 | 5 (10 Apr) | 13 | 1 | 10 Apr | 10 Apr | ||||
| 39. | Streaked Shearwater | 16 | 16 | 16 | 0 | 10 (16 Apr) | 38 | 3 | 16 Apr | 25 Apr | ||||
| 40. | Short-tailed Shearwater | 21 | 21 | 21 | 0 | 12 (25 Apr) | 38 | 3 | 18 Apr | 26 Apr | ||||
| 41. | Brown Booby | 3 | 3 | 2 | 1 | 1 (16 Apr) | 38 | 3 | 16 Apr | 26 Apr | ||||
| 42. | Night Heron | 2 | 2 | 2 | 0 | 2 (17 Apr) | 13 | 1 | 17 Apr | 17 Apr | ||||
| 43. | Eastern Cattle Egret | 79 | 79 | 79 | 0 | 27 (16 Apr) | 88 | 7 | 3 Apr | 26 Apr | ||||
| 44. | Great White Egret | 5 | 5 | 5 | 0 | 3 (25 Apr) | 38 | 3 | 15 Apr | 25 Apr | ||||
| 45. | Little Egret | 19 | 19 | 19 | 0 | 11 (16 Apr) | 63 | 5 | 10 Apr | 25 Apr | ||||
| 46. | Egretta sp. | 41 | 41 | 41 | 0 | 13 (25 Apr) | 75 | 6 | 3 Apr | 25 Apr | ||||
| 47. | Osprey | 2 | 2 | 2 | 0 | 1 (17 Apr) | 25 | 2 | 17 Apr | 18 Apr | ||||
| 48. | Grey-faced Buzzard | 34 | 34 | 34 | 0 | 31 (18 Apr) | 25 | 2 | 17 Apr | 18 Apr | ||||
| 49. | raptor sp. | 1 | 1 | 1 | 0 | 1 (17 Apr) | 13 | 1 | 17 Apr | 17 Apr | ||||
| 50. | Peregrine | 1 | 1 | 1 | 0 | 1 ( 3 Apr) | 13 | 1 | 3 Apr | 3 Apr | ||||
| 51. | Swallow | 65 | 65 | 65 | 0 | 23 (17 Apr) | 75 | 6 | 3 Apr | 26 Apr | ||||
| 52. | Red-rumped Swallow | 2 | 2 | 2 | 0 | 2 ( 3 Apr) | 13 | 1 | 3 Apr | 3 Apr | ||||
| 53. | White Wagtail | 1 | 1 | 1 | 0 | 1 (18 Apr) | 13 | 1 | 18 Apr | 18 Apr | ||||
| Species | Apr | Totals | NE | W | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 4314 | 4314 | 4181 | 133 | 100 | 8 | ||||||||
| Observation hours | 67:45 | 67:45 | ||||||||||||
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