Birds in Connecticut in May

Percent of complete checklists in Connecticut that reported the bird during these weeks, 2016–2025 (86,854 checklists). It shows how likely you are to list the bird, not how many there are. Methods.

1. 1American Robin71%
2. 2Northern Cardinal61%
3. 3Gray Catbird61%
4. 4Red-winged Blackbird56%
5. 5Song Sparrow54%
6. 6Blue Jay53%
7. 7Mourning Dove48%
8. 8American Goldfinch48%
9. 9Common Grackle47%
10. 10Tufted Titmouse47%
11. 11Red-bellied Woodpecker45%
12. 12Northern Yellow Warbler42%
13. 13Black-capped Chickadee39%
14. 14Baltimore Oriole39%
15. 15Chipping Sparrow35%
16. 16Common Yellowthroat34%
17. 17Downy Woodpecker32%
18. 18American Crow32%
19. 19Tree Swallow32%
20. 20House Sparrow31%
21. 21Northern House Wren30%
22. 22Carolina Wren30%
23. 23Canada Goose29%
24. 24White-breasted Nuthatch27%
25. 25European Starling27%
26. 26Eastern Warbling Vireo26%
27. 27Brown-headed Cowbird26%
28. 28Ovenbird26%
29. 29House Finch26%
30. 30American Redstart26%
31. 31Wood Thrush25%
32. 32Red-eyed Vireo25%
33. 33Black-and-white Warbler24%
34. 34Great Crested Flycatcher23%
35. 35Mallard23%
36. 36Barn Swallow23%
37. 37Eastern Phoebe21%
38. 38Northern Flicker21%
39. 39Rose-breasted Grosbeak21%
40. 40Osprey20%
41. 41Chimney Swift19%
42. 42Veery17%
43. 43Turkey Vulture15%
44. 44Yellow-rumped Warbler15%
45. 45Blue-gray Gnatcatcher15%
46. 46Scarlet Tanager15%
47. 47Northern Mockingbird15%
48. 48Eastern Bluebird15%
49. 49Northern Parula15%
50. 50Eastern Towhee15%
51. 51Double-crested Cormorant15%
52. 52White-throated Sparrow15%
53. 53Great Blue Heron14%
54. 54Hairy Woodpecker14%
55. 55Red-tailed Hawk14%
56. 56American Herring Gull13%
57. 57Eastern Kingbird13%
58. 58Ruby-throated Hummingbird13%
59. 59Great Egret12%
60. 60Blue-winged Warbler12%

• Eastern Wood-Peweefirst arrivals early May, peaks early June
• Great Blue Heronfirst arrivals early May, peaks late August
• Semipalmated Sandpiperfirst arrivals the second week of May, peaks the second week of August
• Laughing Gullfirst arrivals late May, peaks mid August
• Common Ternfirst arrivals early May, peaks early August
• Willow Flycatcherfirst arrivals the second week of May, peaks early June
• Blackpoll Warblerfirst arrivals early May, peaks mid May
• Least Ternfirst arrivals early May, peaks late July
• American Kestrelfirst arrivals late May, peaks late September
• Yellow-crowned Night Heronfirst arrivals the second week of May, peaks early August
• Yellow-billed Cuckoofirst arrivals the second week of May, peaks early June
• Canada Warblerfirst arrivals early May, peaks mid May

• White-throated Sparrowmost gone by the second week of May
• Yellow-rumped Warblermost gone by late May
• Brantmost gone by late May
• Northern Waterthrushmost gone by late May
• Bald Eaglemost gone by early May
• Red-breasted Nuthatchmost gone by the second week of May
• Swainson's Thrushmost gone by late May