Birds in Wyoming in September

Percent of complete checklists in Wyoming that reported the bird during these weeks, 2016–2025 (18,682 checklists). It shows how likely you are to list the bird, not how many there are. Methods.

1. 1American Robin35%
2. 2Common Raven28%
3. 3Northern Flicker25%
4. 4Yellow-rumped Warbler22%
5. 5Mallard22%
6. 6Mountain Chickadee20%
7. 7Canada Goose20%
8. 8Wilson's Warbler19%
9. 9Black-billed Magpie18%
10. 10European Starling18%
11. 11Eurasian Collared-Dove18%
12. 12White-crowned Sparrow18%
13. 13Red-breasted Nuthatch16%
14. 14House Finch16%
15. 15Brewer's Blackbird16%
16. 16Black-capped Chickadee16%
17. 17House Sparrow15%
18. 18Red-tailed Hawk14%
19. 19Mourning Dove13%
20. 20Dark-eyed Junco13%
21. 21Turkey Vulture13%
22. 22Chipping Sparrow13%
23. 23American Goldfinch12%
24. 24American Crow12%
25. 25Pine Siskin12%
26. 26Clark's Nutcracker12%
27. 27Red-winged Blackbird12%
28. 28Killdeer11%
29. 29Ruby-crowned Kinglet11%
30. 30Western Meadowlark11%
31. 31Common Grackle10%
32. 32Barn Swallow10%

• Townsend's Solitairefirst arrivals early September, peaks the second week of December
• Ring-necked Pheasantfirst arrivals the second week of September, peaks mid April

• American Robinmost gone by late September
• Common Gracklemost gone by late September
• Mourning Dovemost gone by late September
• Wilson's Warblermost gone by late September
• Western Wood-Peweemost gone by early September
• Chipping Sparrowmost gone by late September
• Killdeermost gone by late September
• Pine Siskinmost gone by mid September
• Barn Swallowmost gone by the second week of September
• Spotted Sandpipermost gone by early September
• Western Tanagermost gone by early September
• Yellow-headed Blackbirdmost gone by early September

33. 33Song Sparrow9.9%
34. 34American Coot9.0%
35. 35Cedar Waxwing8.8%
36. 36Mountain Bluebird8.6%
37. 37Common Merganser8.5%
38. 38Belted Kingfisher8.2%
39. 39Bald Eagle7.8%
40. 40Great Blue Heron7.7%
41. 41American Wigeon7.6%
42. 42Vesper Sparrow7.4%
43. 43Rock Pigeon7.1%
44. 44Orange-crowned Warbler7.1%
45. 45Ring-billed Gull7.0%
46. 46American White Pelican7.0%
47. 47Double-crested Cormorant7.0%
48. 48Western Wood-Pewee6.7%
49. 49Gadwall6.6%
50. 50Northern Harrier6.4%
51. 51Osprey6.1%
52. 52Gray Catbird5.9%
53. 53Blue-winged Teal5.7%
54. 54Lincoln's Sparrow5.6%
55. 55Blue Jay5.5%
56. 56Downy Woodpecker5.5%
57. 57Green-winged Teal5.1%
58. 58Townsend's Solitaire4.9%
59. 59American Kestrel4.8%
60. 60Spotted Towhee4.8%