Birds in Delaware in August

Percent of complete checklists in Delaware that reported the bird during these weeks, 2016–2025 (15,373 checklists). It shows how likely you are to list the bird, not how many there are. Methods.

1. 1Mourning Dove52%
2. 2American Goldfinch49%
3. 3Northern Cardinal48%
4. 4Carolina Wren47%
5. 5Laughing Gull44%
6. 6Osprey39%
7. 7Gray Catbird34%
8. 8Great Blue Heron34%
9. 9Barn Swallow33%
10. 10American Robin32%
11. 11Turkey Vulture32%
12. 12Carolina Chickadee32%
13. 13Great Egret29%
14. 14Snowy Egret29%
15. 15Blue Jay28%
16. 16European Starling27%
17. 17Forster's Tern26%
18. 18Red-winged Blackbird26%
19. 19Canada Goose26%
20. 20American Crow24%
21. 21House Finch24%
22. 22Tufted Titmouse24%
23. 23Eastern Wood-Pewee23%
24. 24Ruby-throated Hummingbird23%
25. 25Double-crested Cormorant23%
26. 26Purple Martin22%
27. 27Semipalmated Sandpiper22%
28. 28Tree Swallow22%
29. 29Downy Woodpecker22%
30. 30Semipalmated Plover22%
31. 31Blue Grosbeak21%
32. 32Northern Mockingbird21%
33. 33Eastern Kingbird20%
34. 34Red-bellied Woodpecker20%
35. 35American Herring Gull20%
36. 36Song Sparrow19%
37. 37Greater Yellowlegs17%
38. 38Indigo Bunting16%
39. 39Lesser Yellowlegs16%
40. 40Bald Eagle16%
41. 41House Sparrow16%
42. 42Mallard15%
43. 43Chipping Sparrow15%
44. 44Common Yellowthroat15%
45. 45Green Heron14%
46. 46Fish Crow14%
47. 47Short-billed Dowitcher14%
48. 48Red-eyed Vireo14%
49. 49Least Sandpiper13%
50. 50Ring-billed Gull13%
51. 51Eastern Bluebird13%
52. 52Northern Flicker13%
53. 53Great Black-backed Gull13%
54. 54White-breasted Nuthatch13%
55. 55Common Grackle13%
56. 56Caspian Tern12%
57. 57Eastern Towhee12%
58. 58Field Sparrow12%
59. 59Royal Tern11%
60. 60Chimney Swift11%

• American Redstartfirst arrivals early August, peaks the second week of September
• White-breasted Nuthatchfirst arrivals late August, peaks the second week of September
• Black-and-white Warblerfirst arrivals the second week of August, peaks the second week of September
• Northern Harrierfirst arrivals mid August, peaks mid November
• Green-winged Tealfirst arrivals the second week of August, peaks mid March
• Pileated Woodpeckerfirst arrivals late August, peaks the second week of September
• Magnolia Warblerfirst arrivals mid August, peaks mid September
• Hairy Woodpeckerfirst arrivals late August, peaks late September
• Northern Shovelerfirst arrivals the second week of August, peaks the second week of March
• Chestnut-sided Warblerfirst arrivals mid August, peaks early September
• Black-throated Green Warblerfirst arrivals late August, peaks mid September
• Cape May Warblerfirst arrivals late August, peaks late September

• Barn Swallowmost gone by late August
• Purple Martinmost gone by mid August
• Fish Crowmost gone by early August
• Indigo Buntingmost gone by mid August
• Eastern Kingbirdmost gone by late August
• Marsh Wrenmost gone by the second week of August
• Willetmost gone by early August
• Field Sparrowmost gone by late August
• Boat-tailed Gracklemost gone by early August
• Seaside Sparrowmost gone by early August
• Acadian Flycatchermost gone by early August
• Least Ternmost gone by mid August