Birds in Iowa in September

Percent of complete checklists in Iowa that reported the bird during these weeks, 2016–2025 (20,403 checklists). It shows how likely you are to list the bird, not how many there are. Methods.

1. 1Blue Jay67%
2. 2American Goldfinch52%
3. 3Black-capped Chickadee50%
4. 4Northern Cardinal49%
5. 5White-breasted Nuthatch47%
6. 6Downy Woodpecker46%
7. 7Gray Catbird46%
8. 8Red-bellied Woodpecker45%
9. 9American Robin41%
10. 10Turkey Vulture39%
11. 11American Crow38%
12. 12Northern Flicker35%
13. 13Canada Goose33%
14. 14Mourning Dove33%
15. 15Great Blue Heron29%
16. 16Killdeer26%
17. 17Northern House Wren25%
18. 18Eastern Wood-Pewee25%
19. 19House Sparrow24%
20. 20Ruby-throated Hummingbird23%
21. 21Red-headed Woodpecker22%
22. 22European Starling22%
23. 23Cedar Waxwing21%
24. 24House Finch21%
25. 25Hairy Woodpecker20%
26. 26Red-eyed Vireo19%
27. 27Ring-billed Gull18%
28. 28Barn Swallow16%
29. 29Mallard16%
30. 30Nashville Warbler15%
31. 31American White Pelican15%
32. 32Red-winged Blackbird14%
33. 33Tree Swallow14%
34. 34American Redstart14%
35. 35Rose-breasted Grosbeak14%
36. 36Common Yellowthroat14%
37. 37Bald Eagle14%
38. 38Eastern Bluebird14%
39. 39Eastern Phoebe14%
40. 40Double-crested Cormorant13%
41. 41Belted Kingfisher13%
42. 42Black-and-white Warbler12%
43. 43Tennessee Warbler12%
44. 44Yellow-rumped Warbler12%
45. 45Magnolia Warbler11%
46. 46Wood Duck11%
47. 47Red-tailed Hawk11%
48. 48Great Egret11%
49. 49Song Sparrow10%

• White-throated Sparrowfirst arrivals the second week of September, peaks mid October
• Yellow-rumped Warblerfirst arrivals early September, peaks the second week of October
• Northern Flickerfirst arrivals early September, peaks late September
• Swamp Sparrowfirst arrivals the second week of September, peaks the second week of October
• Golden-crowned Kingletfirst arrivals mid September, peaks the second week of October
• White-crowned Sparrowfirst arrivals late September, peaks mid October
• Lincoln's Sparrowfirst arrivals early September, peaks the second week of October
• Trumpeter Swanfirst arrivals late September, peaks early March
• Orange-crowned Warblerfirst arrivals mid September, peaks early October
• Ruddy Duckfirst arrivals late September, peaks early November
• Savannah Sparrowfirst arrivals mid September, peaks the second week of October
• Harris's Sparrowfirst arrivals late September, peaks late October

• Gray Catbirdmost gone by late September
• Northern House Wrenmost gone by the second week of September
• Baltimore Oriolemost gone by early September
• Mourning Dovemost gone by mid September
• Eastern Wood-Peweemost gone by mid September
• Rose-breasted Grosbeakmost gone by mid September
• Barn Swallowmost gone by the second week of September
• Eastern Kingbirdmost gone by early September
• American Redstartmost gone by mid September
• Great Crested Flycatchermost gone by early September
• Ruby-throated Hummingbirdmost gone by late September
• Eastern Warbling Vireomost gone by the second week of September

50. 50Tufted Titmouse9.9%
51. 51Chestnut-sided Warbler9.4%
52. 52Chipping Sparrow9.4%
53. 53Yellow-throated Vireo9.3%
54. 54Eastern Warbling Vireo9.0%
55. 55Red-breasted Nuthatch9.0%
56. 56Indigo Bunting8.3%
57. 57Blue-winged Teal7.9%
58. 58Least Flycatcher7.3%
59. 59Common Nighthawk7.3%
60. 60Swainson's Thrush7.0%